HP PROBOOK 4520S User instructions

1. WWAN antennas 13. (2) USB 2.0 ports
2. WLAN antennas 14. Optional HP Fingerprint Sensor
3. Integrated microphone 15. ClickPad with left and right ClickPad buttons
4. Webcam LED (works with optional webcam) 16. Stereo microphone in
5. Optional 2 MP webcam 17. Stereo headphone/line out
6. Power button with LED indicator 18. Media Card Reader
7. Stereo speakers 19. Hard drive activity LED indicator
8. Wireless switch with LED indicator 20. HP QuickLook 3 button with LED indicator
9. Battery charging LED indicator 21. HP QuickWeb button with LED indicator
10. Power connector 22. Volume mute button
11. Optical drive (select models) 23. Volume down button
12. Optional RJ-11/modem port 24. Volume up button
1. Kensington Lock slot 5. Combo eSATA/USB port
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Overview
DA - 13569 North America — Version 8 — July 23, 2010 Page 1

2. VGA connector (external monitor/projector) 6. ExpressCard/34 slot
3. RJ-45/Ethernet port 7. USB 2.0 port
4. HDMI port
1. Battery release latches 3. SIM card slot (select units, located inside battery bay)
2. Battery bay
At A Glance
At A GlanceAt A Glance
At A Glance
Genuine Windows 7 versions, Genuine Windows XP Professional available through downgrade rights from Windows 7
Professional, SUSE Linux
Thin, lightweight design with brushed aluminum finish for durability and style
Full-sized spill-resistant keyboard with better spaced keys and full separate numeric keypad
ATI Mobility Radeon HD 530v or HD 5470 discrete graphics, or integrated Intel HD Graphics
ArcSoft TotalMedia Suite for playing, creating, and editing video and audio files
New keyboard function keys for play, rewind, and fast-forward of video and audio files
Corel Home Office productivity suite for word processing, spreadsheets, and presentations
HDMI port for connecting to high-resolution displays; combo eSATA/USB port
HP Face Recognition for HP ProtectTools for easy logins using the optional integrated 2 MP webcam
Up to 500 GB 7200 rpm hard drive or 750 GB 5400 rpm hard drive with HP 3D DriveGuard protection
HP Power Assistant to conserve power, increase battery run-time, monitor power needs, report workforce power consumption
HP QuickLook 3 (quick access to e-mail, calendar, contacts and tasks), HP QuickWeb, HP DayStarter
HP Connection Manager 3.1
Flexible wireless connectivity options:
Integrated Intel Centrino® Advanced-N 6200 802.11 a/b/g/n, Atheros 802.11 b/g/n wireless LAN module
802.11 b/g/n with Bluetooth High Speed (HS) combo card**
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Overview
DA - 13569 North America — Version 8 — July 23, 2010 Page 2

Bluetooth® v2.1
HP ProBook 4520s offers choice of 9-cell or 6-cell battery to customize weight and run-time to your needs
Integrated Media Card Reader and ExpressCard/34 slot
Widescreen LED-backlit HD display with 16:9 aspect ratio
HP ProBook 4520s: 15.6-inch diagonal
HP ProBook 4720s: 17.3-inch diagonal
Choice of an Intel® Core™ i7, Core i5, or Core i3, or Celeron processor
Enhanced security features including HP ProtectTools, HP Face Recognition, Computrace LoJack Pro ready, HP SpareKey, HP
Disk Sanitizer, optional HP Fingerprint Sensor, and optional HP Privacy Filter
Optional optical drives include Blu-ray ROM DVD+/-RW SuperMulti DL Drive for high-definition playback and DVD+/-RW
SuperMulti DL LightScribe Drive for burning custom labels directly to your discs
* Only available with HP ProBook 4520s with Intel HD Graphics.
** Available on select models.
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Overview
DA - 13569 North America — Version 8 — July 23, 2010 Page 3

Processors
ProcessorsProcessors
Processors Intel Core i7-620M Processor (2.66 GHz, 4 MB L3 cache) *
Up to 3.33 GHz with Intel Turbo Boost Technology
Intel Core i5-520M Processor (2.4 GHz, 3 MB L3 cache) *
Up to 2.93 GHz with Intel Turbo Boost Technology
Intel Core i5-450M Processor (2.4 GHz, 3 MB L3 cache) *
Up to 2.66 GHz with Intel Turbo Boost Technology
Intel Core i5-430M Processor (2.26 GHz, 3 MB L3 cache) *
Up to 2.53 GHz with Intel Turbo Boost Technology
Intel Core i3-370M Processor (2.4 GHz, 3 MB L3 cache) *
Intel Core i3-350M Processor (2.26 GHz, 3 MB L3 cache) *
Intel Core i3-330M Processor (2.13 GHz, 3 MB L3 cache) *
Intel Celeron P4500 processor (1.86 GHz, 2 MB L3 cache) *
NOTE:
NOTE:NOTE:
NOTE: Processor speed denotes maximum performance mode; processors will run at lower speeds in
battery optimization mode.
* Intel's numbering is not a measurement of higher performance.
Operating System
Operating SystemOperating System
Operating System Preinstalled
PreinstalledPreinstalled
Preinstalled Genuine Windows 7 Professional Edition 32 *
Genuine Windows 7 Professional Edition 64 *
Genuine Windows XP Professional 32 available through downgrade rights
from Windows 7 Professional *†
Genuine Windows 7 Home Premium Edition 32 *
Genuine Windows 7 Home Premium Edition 64 *
SUSE Linux Enterprise Desktop 11
Certified
CertifiedCertified
Certified SUSE Linux Enterprise Desktop 11
* System may require upgraded and/or separately purchased hardware and/or a DVD drive to install the
Windows 7 software and take full advantage of Windows 7 functionality.
See: http://www.microsoft.com/windows/windows-7/ for details.
** Certain Windows Vista product features require advanced or additional hardware. See:
http://www.microsoft.com/windowsvista/getready/hardwarereqs.mspx and
http://www.microsoft.com/windowsvista/getready/capable.mspx for details. Windows Vista Upgrade
Advisor can help you determine which features of Windows Vista will run on your computer. To
download the tool, visit: http://www.windowsvista.com/upgradeadvisor .
† Windows XP Professional is preinstalled on this system and includes end user rights and media for
Windows 7 Professional. You may only use one version at a time. You must back up all data (files,
photos, etc.) before uninstalling and installing operating systems to avoid loss of your data.
Chipset
ChipsetChipset
Chipset Mobile Intel HM57 Express Chipset
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Standard Features (availability may vary by country)
DA - 13569 North America — Version 8 — July 23, 2010 Page 4

Graphics
GraphicsGraphics
Graphics Integrated graphic:s (HP ProBook 4520s only)
Intel HD Graphics
Microsoft DirectX 10 capable
Discrete graphics: (HP ProBook 4720s only)
ATI Mobility Radeon HD 530v graphics controller with 512 MB dedicated video memory
Microsoft DirectX 10.1 capable
ATI Mobility Radeon HD 5470 graphics controller with 512 MB dedicated video memory
Microsoft DirectX 11 capable
Display
DisplayDisplay
Display Internal
InternalInternal
Internal HP ProBook 4520s:
15.6-inch diagonal LED-backlit HD anti-glare (1366 x 768 resolution)
HP ProBook 4720s:
17.3-inch diagonal LED-backlit HD+ anti-glare (1600x900 resolution)
Optional HP Privacy Filter
External
ExternalExternal
External Up to 32-bit per pixel color depth
VGA
VGAVGA
VGA port supports resolutions up to 2048 x 1536 at 75 Hz, and lower
resolutions at up to 100 Hz.
HDMI
HDMIHDMI
HDMI port supports direct connection to high-definition displays with up to
1920 x 1080 resolution and 7-channel audio with one convenient cable (not
included).
NOTE:
NOTE:NOTE:
NOTE: Resolutions are dependent upon monitor capability, and resolution
and color depth settings.
Memory
MemoryMemory
Memory Standard
StandardStandard
Standard DDR3 PC3-8500 (1066 MHz) * or PC3-10600 (1333 MHz) * SDRAM
Two SODIMM slots supporting dual-channel memory
1024 MB, 2048 MB, and 4096 SODIMMs
Standard memory up to 8192 MB
Maximum
MaximumMaximum
Maximum Upgradeable to 8192 MB with 4096 MB SODIMMs in slots 1 and 2
Dual-channel
Dual-channelDual-channel
Dual-channel Maximized dual-channel performance requires SODIMMs of the same size
and speed in both memory slots.
* Memory speed is processor dependent.
NOTE:
NOTE:NOTE:
NOTE: Due to the non-industry standard nature of some third-party memory modules, we recommend
HP branded memory to ensure compatibility. If you mix memory speeds, the system will perform at the
lower memory speed. Full availability of 4 GB or more of memory requires Windows Vista Business 64-
bit or Linux. With Windows 32-bit operating systems, the amount of usable memory is dependent upon
your configuration, so that above 3 GB all memory may not be available due to system resource
requirements.
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Standard Features (availability may vary by country)
DA - 13569 North America — Version 8 — July 23, 2010 Page 5

Communications
CommunicationsCommunications
Communications Realtek Ethernet (10/100/1000 NIC) *
Optional 56K V.92 modem **
* The term "10/100/1000" or "Gigabit" Ethernet indicates compliance with IEEE standard 802.3ab for
Gigabit Ethernet, and does not connote actual operating speed of 1 Gb/s. For high-speed transmission,
connection to a Gigabit Ethernet server and network infrastructure is required.
** Designed for downloads from 56K modem compliant sources. Maximum achievable download
transmission rates currently do not reach 56 KB/s, and will vary with line conditions. Modem availability
is subject to country regulatory approval.
Wireless Devices
Wireless DevicesWireless Devices
Wireless Devices Support for a broad range of secure, integrated wireless LAN options featuring support for the latest
industry standards. Integrated Bluetooth is also available (factory configurable only) and can be
combined with any of the supported wireless LAN and options.
All 802.11 integrated
All 802.11 integratedAll 802.11 integrated
All 802.11 integrated
wireless LAN options
wireless LAN optionswireless LAN options
wireless LAN options
Wi-Fi certified *
Wired Equivalent Privacy (WEP) support up to 128-bit keys
Wi-Fi Protected Access (WPA) and WPA2 support
802.1x authentication support, including EAP-TLS, EAP-TTLS, PEAP-GTC,
PEAP-MSCHAPv2, and LEAP
Advanced Encryption Standard (AES) support
Dual antennas integrated in the display enclosure
Intel Centrino Advanced-
Intel Centrino Advanced-Intel Centrino Advanced-
Intel Centrino Advanced-
N 6200 (2x2)
N 6200 (2x2)N 6200 (2x2)
N 6200 (2x2)
Integrated support for 802.11a, b, g, and n *
2 transmit, 2 receive antennas
Up to 300 mbps data rate
Atheros 9285G
Atheros 9285GAtheros 9285G
Atheros 9285G
802.11b/g/n (1x1)
802.11b/g/n (1x1)802.11b/g/n (1x1)
802.11b/g/n (1x1)
Integrated support for 802.11b, g, and n
Up to 300 mbps data rate
Ralink RT3090BC4
Ralink RT3090BC4Ralink RT3090BC4
Ralink RT3090BC4
802.11b/g/n WiFi and
802.11b/g/n WiFi and802.11b/g/n WiFi and
802.11b/g/n WiFi and
Bluetooth 3.0 HS
Bluetooth 3.0 HSBluetooth 3.0 HS
Bluetooth 3.0 HS
Combo Adapter
Combo AdapterCombo Adapter
Combo Adapter
Integrated support for 802.11 b, g, and n
Up to 150 mbps data rate
Bluetooth Specification 3.0 HS compliant
Works with a wide range of Bluetooth devices
HP Integrated Module
HP Integrated ModuleHP Integrated Module
HP Integrated Module
with Bluetooth 2.1+EDR
with Bluetooth 2.1+EDRwith Bluetooth 2.1+EDR
with Bluetooth 2.1+EDR
Wireless Technology
Wireless TechnologyWireless Technology
Wireless Technology
Bluetooth Specification v2.1+EDR compliant
Works with a wide range of Bluetooth devices
* In countries where 802.11n is not allowed, this capability is not enabled (Intel 802.11a/b/g only).
Keyboard
KeyboardKeyboard
Keyboard The HP spill-resistant keyboard is designed using a thin layer of Mylar film under the keyboard and a
drain system that funnels fluid through a hole in the bottom of the notebook. This minimizes the risk of
damage to sensitive components underneath. The 101/102-key compatible keyboard features a full-
pitch key layout with desktop keyboard features, such as the isolated inverted-T cursor control keys,
editing keys, both left and right control and alt keys, full separate numeric keypad, and 12 function keys.
US and International key layouts are available. Other features include hotkeys for instant access to
power conservation and brightness, and 19.05 x 19.05 mm key pitch (center-to-center spacing).
Pointing device
Pointing devicePointing device
Pointing device ClickPad with gestures support:
Two-finger scroll, zoom, pinch and pivot rotate
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Standard Features (availability may vary by country)
DA - 13569 North America — Version 8 — July 23, 2010 Page 6

Expansion card slots
Expansion card slotsExpansion card slots
Expansion card slots ExpressCard/34 slot
ExpressCard/34 slotExpressCard/34 slot
ExpressCard/34 slot Supports ExpressCard/34 (34 mm x 75 mm x 5 mm) card sizes
Media Card Reader
Media Card ReaderMedia Card Reader
Media Card Reader Supports SD (Secure Digital), MMC (MultiMedia Card), Memory Stick,
Memory Stick Pro, Memory Stick Duo * , xD-Picture card
* Memory Stick Duo Adapters are required and sold separately. Inserting a Memory Stick Duo Card
directly into your notebook could damage the memory card and/or notebook.
Storage
StorageStorage
Storage Internal Storage Device
Internal Storage DeviceInternal Storage Device
Internal Storage Device 250/320/500 GB 7200 rpm SMART SATA II Hard Drive
640/750 GB 5400 rpm SMART SATA II Hard Drive
NOTE:
NOTE:NOTE:
NOTE: Up to 15 GB is reserved for the system recovery software.
HP 3D DriveGuard
HP 3D DriveGuardHP 3D DriveGuard
HP 3D DriveGuard
(Windows models only)
The hard drive is mounted directly to the notebook frame, reducing the
transmission of shock to the hard drive. Uses three-axis digital motion
detection with intelligent sensitivity to help protect the hard drive during
normal use from shock and vibration. The digital accelerometer temporarily
halts all data transfer and parks the hard drive when abrupt motion is
detected.
Fixed optical drives
Fixed optical drivesFixed optical drives
Fixed optical drives Blu-ray ROM DVD+/-RW SuperMulti DL LightScribe Drive *
DVD+/-RW SuperMulti DL LightScribe Drive
* Support for the Blu-ray DVD drive on configurations with integrated
graphics requires Windows7 or Windows Vista; configurations with discrete
graphics support it with any offered Windows operating system.
Interfaces
InterfacesInterfaces
Interfaces VGA
VGAVGA
VGA One
HDMI
HDMIHDMI
HDMI One
Stereo microphone in
Stereo microphone inStereo microphone in
Stereo microphone in One
Stereo headphone/line
Stereo headphone/lineStereo headphone/line
Stereo headphone/line
out
outout
out
One
Power connector
Power connectorPower connector
Power connector One
RJ-11/modem (optional)
RJ-11/modem (optional)RJ-11/modem (optional)
RJ-11/modem (optional) One
RJ-45/Ethernet
RJ-45/EthernetRJ-45/Ethernet
RJ-45/Ethernet One
Combo eSATA/USB 2.0
Combo eSATA/USB 2.0Combo eSATA/USB 2.0
Combo eSATA/USB 2.0 One
USB 2.0
USB 2.0USB 2.0
USB 2.0 Three
LED status indicators
LED status indicatorsLED status indicators
LED status indicators Eight
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Standard Features (availability may vary by country)
DA - 13569 North America — Version 8 — July 23, 2010 Page 7

Audio/Visual
Audio/VisualAudio/Visual
Audio/Visual High Definition Audio support
Integrated stereo speakers
Integrated digital microphone
Stereo headphone/line out
Stereo microphone in
Optional 2 MP webcam
Supports videoconferencing and still image capture
Improved quality for video streaming and still image capture (1600x1200 resolution)
Up to 30 frames/sec
Fixed focus lens
16-bit true color (camera sensor up to UXGA resolution)
Software
SoftwareSoftware
Software Preinstalled software with
Preinstalled software withPreinstalled software with
Preinstalled software with
Windows Operating
Windows OperatingWindows Operating
Windows Operating
System
SystemSystem
System
HP Recovery Manager (available with Windows 7 only)
HP Support Assistant (available with Windows only)
HP ProtectTools Security Manager
HP Face Recognition
HP QuickLaunch Buttons Software
HP QuickLook 3
HP QuickWeb
HP Power Assistant
HP Connection Manager 3.1
HP Wireless Assistant
HP Day Starter
Corel Home Office productivity suite 60-day trial
Roxio Creator Business (select models)
ArcSoft Total Media Suite
Microsoft Office Professional 2007 60-day Convertible Trial
or Microsoft Office 2010 preloaded (purchase of a Product
Key required to activate a full Office 2010 suite) **
McAfee Total Protection *
Norton Online Backup trial
HP Webcam Software (select models)
Skype
WinZip 14.5 trial
Additional software
Additional softwareAdditional software
Additional software
available from the web
available from the webavailable from the web
available from the web
HP SoftPaq Download Manager
* 60 day trial period for McAfee Total Protection for Small Business software. Internet access required to
receive updates. First update included. Subscription required for updates thereafter.
** Microsoft Office 2010 Preloaded includes reduced functionality versions of Word and Excel. Purchase
of Product Key required to activate full Office 2010 suite available at participating resellers/retailers and
http://www.office.com .
HP Recovery Manager
HP Recovery ManagerHP Recovery Manager
HP Recovery Manager Models shipped with Windows 7 include HP Recovery Manager. HP Recovery Manager enables fast
recovery of the factory preinstalled image if the system becomes corrupted or if important system files are
accidentally deleted. Up to 15 GB of the hard drive is reserved for the system recovery software.
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Standard Features (availability may vary by country)
DA - 13569 North America — Version 8 — July 23, 2010 Page 8

Security
SecuritySecurity
Security Standard Features
Standard FeaturesStandard Features
Standard Features HP ProtectTools Security Manager
Face Recognition for HP ProtectTools
One Step Login
Enhanced Pre-Boot Security
HP SpareKey
HP Disk Sanitizer
Setup Password
Kensington Lock Slot
Support for Computrace * LoJack Pro for HP ProtectTools
Optional Features
Optional FeaturesOptional Features
Optional Features HP Fingerprint Sensor
HP Privacy Filter
* The Computrace agent is shipped turned off, and must be activated by customers when they purchase
a subscription with terms ranging from one to five years.
For more information on HP security solutions refer to: http://www.hp.com/go/security .
HP ProtectTools Security
HP ProtectTools SecurityHP ProtectTools Security
HP ProtectTools Security
Manager
ManagerManager
Manager
HP ProtectTools Security Manager is the security platform for business notebooks and desktops. The HP
ProtectTools Security Manager is an extensible client security console that delivers enhanced security
capabilities through add-on software modules. The following modules are available on the hard drive
(also downloadable from the web) and can be configured in Software Setup:
Credential Manager for HP ProtectTools
Device Access Manager for HP ProtectTools
Drive Encryption for HP ProtectTools
File Sanitizer for HP ProtectTools
Privacy Manager for HP ProtectTools (Chat & Sign)
Embedded Security for HP ProtectTools
Computrace LoJack Pro for HP ProtectTools
HP ProtectTools is now centrally manageable with the capability to manage notebooks from a single
point. Security is management ready out of the box, in partnership with Digital Persona. New features
address requirements that customers expect from a centrally managed security solution such as user
provisioning, credential reset, and credential revocation.
HP ProtectTools provides two separate management solutions, targeted at the enterprise and the SMB:
Digital Persona Pro AD: Designed for the enterprise customer. Integrates with Active Directory and
gives IT Managers the ability to provision users, create login policies based on passwords,
biometrics or smartcards. Management features also include remote credential recovery in case
the user forgets the password, loses the smartcard or cannot use the fingerprint reader for any
reason. In addition, advanced auditing capabilities are also built in. Digital Persona Pro AD is
available now.
Digital Persona Pro Workgroup: Designed for the small business customer. Provides features
similar to the Active Directory version, but for workgroups. Workgroup activation is built into HP
ProtectTools, and activation of up to 5 seats is completely free.
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Standard Features (availability may vary by country)
DA - 13569 North America — Version 8 — July 23, 2010 Page 9

Power Supply
Power SupplyPower Supply
Power Supply Models with integrated graphics: External 65-watt Smart AC adapter
Models with discrete graphics: External 90-watt Smart AC adapter
6-foot (1.8-meter) power cord included; total length including external AC adapter is 12 feet (3.66
meter)
HP Fast Charge *
* HP Fast Charge recharges your battery up to 90% within 90 minutes when the system is off. HP Fast
Charge does not apply to the HP 9-cell battery.
Battery
BatteryBattery
Battery Primary battery
Primary batteryPrimary battery
Primary battery HP ProBook 4520s:
HP 9-cell (93 WHr) Li-Ion battery
HP 6-cell (47 WHr) Li-Ion battery
HP ProBook 4720s:
HP 8-cell (73 WHr) Li-Ion battery
Battery Life
Battery LifeBattery Life
Battery Life Configurations with integrated
Configurations with integratedConfigurations with integrated
Configurations with integrated
graphics
graphicsgraphics
graphics
Configurations with
Configurations withConfigurations with
Configurations with
discrete graphics
discrete graphicsdiscrete graphics
discrete graphics
HP ProBook 4520s
HP ProBook 4520sHP ProBook 4520s
HP ProBook 4520s
9-cell battery
9-cell battery9-cell battery
9-cell battery Up to 10 hours N/A
6-cell battery
6-cell battery6-cell battery
6-cell battery Up to 5 hours
HP ProBook 4720s
HP ProBook 4720sHP ProBook 4720s
HP ProBook 4720s
8-cell battery
8-cell battery8-cell battery
8-cell battery N/A Up to 6 hours
NOTE:
NOTE:NOTE:
NOTE: Battery life will vary depending on the product model, configuration, loaded applications,
features, use, wireless functionality and power management settings. The maximum capacity of the
battery will naturally decrease with time and usage. See MobileMark07 battery benchmark
www.bapco.com/products/mobilemark2007 for additional details.
System Standby Time
System Standby TimeSystem Standby Time
System Standby Time Up to 1 week
Power Conservation
Power ConservationPower Conservation
Power Conservation Supports enhanced Intel SpeedStep technology (allows Battery Optimized Mode, Maximum Performance
Mode, or Automatic mode)
ATI PowerPlay technology
Hibernation
Standby
ACPI compliance
Service and Support
Service and SupportService and Support
Service and Support HP Services offers limited 1-year warranty.
1-year limited warranty on primary battery. Warranty upgrades are also available. HP Care Pack
Services extend service contracts beyond the standard warranties. To choose the right level of service for
your HP product, use the HP Care Pack Services Lookup Tool at: http://www.hp.com/go/lookuptool .
Additional HP Care Pack Services information by product is available at:
http://www.hp.com/hps/carepack .
NOTE:
NOTE:NOTE:
NOTE: Certain restrictions and exclusions apply. Consult the HP Customer Support Center for details.
http://h20000.www2.hp.com/bizsupport/TechSupport/ProductRoot.jsp .
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Standard Features (availability may vary by country)
DA - 13569 North America — Version 8 — July 23, 2010 Page 10

Memory
MemoryMemory
Memory HP 1 GB (DDR3 1333 MHz) SODIMM AT911AA
HP 2 GB (DDR3 1333 MHz) SODIMM AT912AA
HP 4 GB (DDR3 1333 MHz) SODIMM AT913AA
Storage
StorageStorage
Storage HP 250 GB USB Pocket Media Hard Drive FE477AA
HP External USB CD/DVD R/RW Drive FS943AA
Communication
CommunicationCommunication
Communication HP WLAN 802/11 a/b/g/draft-n Mini-card Kit KM591AA#xxx
Expansion
ExpansionExpansion
Expansion HP Basic Adjustable Stand AL549AA
HP USB 2.0 Docking Station FQ834AA
HP Essential USB 2.0 Port Replicator AQ731AA
HP Dual Hinge Notebook Stand AW661AA
HP Display & Notebook Stand AW662AA
HP Adjustable Display Stand AW663AA
HP Adjustable Dual Display Stand AW664AA
Power
PowerPower
Power 65W Smart AC Adapter ED494AA
90W Smart AC/Auto/Air Combo Adapter AJ652AA
HP 65W Slim Adapter AX727AA
HP Smart 65W Travel AC Adapter AU155AA
90W Smart AC Adapter ED495AA
HP 6-Cell Li-Ion Primary Battery BQ350AA
Carrying Cases
Carrying CasesCarrying Cases
Carrying Cases HP Deluxe Nylon Backpack RR317AA
HP Value Nylon Case RR314AA
HP Universal Nylon Case RR315AA
HP Executive Leather Case RR316AA
HP Deluxe Roller Case GD405AA
HP Basic Backpack AM863AA
HP Basic Messenger AP355AA
HP Basic Carrying Case AJ078AA
HP Professional Series Carrying Case AT886AA
HP Professional Series Backpack AT887AA
HP Professional Series Messenger AT888AA
HP Professional Series Designer Tote AT889AA
HP Professional Series Slip Case AT890AA
HP Elite Series Quick Case AT892AA
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Options (availability may vary by country)
DA - 13569 North America — Version 8 — July 23, 2010 Page 11

Security
SecuritySecurity
Security HP/Kensington MicroSaver Security Lock PC766A
HP Notebook Cable Lock AY475AA
HP Privacy Filter For 15.6 in AU103AA
HP Privacy Filter For 17.3 in AU650AA
Input/Output Devices
Input/Output DevicesInput/Output Devices
Input/Output Devices HP USB/PS2 Optical 2-Button Scroll Mouse DC369A
HP USB Keyboard & Mouse Bundle RC465AA
HP USB Optical Travel Mouse RH304AA
HP Wireless Mouse AR085AA
HP BT Headset AR084AA
HP Mobile Audio Speakers FS944AA
HP Mobile Productivity Bundle AQ729AA
HP Notebook Companion Projector AX325AA
HP Special Edition Optical Mouse AU094AA
HP Premium Autofocus Webcam KQ245AA
Premium Digital Headset KJ270AA
HP Promo USB Graphics Adapter NL571AT
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Options (availability may vary by country)
DA - 13569 North America — Version 8 — July 23, 2010 Page 12

DDR3 PC3--8500 (1066 MHz)* or DDR3 PC3-10600 (1333 MHz)* SDRAM
Two SODIMM slots supporting dual-channel memory
SODIMM sizes supported: 1024 MB, 2048 MB and 4096 MB
Standard Memory
Standard MemoryStandard Memory
Standard Memory 1024 MB (1024 MB x 1)
2048 MB (2048 MB x 1)
2048 MB (1024 MB x 2)
3072 MB (2048 MB + 1024 MB)
4096 MB (2048 MB x 2)
4096 MB (4096 MB x 1)
Optional Memory
Optional MemoryOptional Memory
Optional Memory
Upgrades
UpgradesUpgrades
Upgrades
Support for up to 8192 MB of memory with the installation of optional DDR3 SDRAM memory kits. Both
memory slots are user accessible. Please refer to the Hardware and Software Guide for installation
procedures. Maximized dual-channel performance requires SODIMMs of the same size and speed in
both memory slots.
Up to
Up toUp to
Up to Slot 1
Slot 1Slot 1
Slot 1 Slot 2
Slot 2Slot 2
Slot 2
2048 MB 1024 MB 1024 MB
2048 MB 2048 MB empty
3072 MB 2048 MB 1024 MB
4096 MB 2048 MB 2048 MB
4096 MB 4096 MB empty
8192 MB 4096 MB 4096 MB
* Memory speed is processor dependent.
NOTE:
NOTE:NOTE:
NOTE: This chart does not represent all possible memory configurations. Due to the non-industry standard nature of some third-
party memory modules, we strongly recommend using only HP branded memory modules to ensure compatibility. If you mix memory
speeds, the system will perform at the lower memory speed. Availability of 4 GB or more of memory requires Windows Vista Business
64-bit or Linux. With Windows 32-bit operating systems, memory above 3 GB may not all be available due to system resource
requirements.
Memory Upgrades
Memory UpgradesMemory Upgrades
Memory Upgrades HP 1 GB (DDR3 1333 MHz) SODIMM AT911AA
HP 2 GB (DDR3 1333 MHz) SODIMM AT912AA
HP 4 GB (DDR3 1333 MHz) SODIMM AT913AA
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Memory
DA - 13569 North America — Version 8 — July 23, 2010 Page 13

Removable Media Drive Support
Removable Media Drive SupportRemovable Media Drive Support
Removable Media Drive Support
Quantity Supported
Quantity SupportedQuantity Supported
Quantity Supported Drive Bay
Drive BayDrive Bay
Drive Bay
Blu-ray ROM DVD+/-RW
SuperMulti DL LightScribe
Drive *
One Fixed optical drive bay
DVD+/-RW SuperMulti DL
LightScribe Drive
One Fixed optical drive bay
* Support for the Blu-ray DVD drive on configurations with integrated graphics requires Windows7 or Windows Vista; configurations
with discrete graphics support it with any offered Windows operating system.
Internal Storage Device
Internal Storage DeviceInternal Storage Device
Internal Storage Device
Quantity Supported
Quantity SupportedQuantity Supported
Quantity Supported Drive Bay
Drive BayDrive Bay
Drive Bay
Hard Drives
Hard DrivesHard Drives
Hard Drives
500 GB 7200 rpm SMART
SATA II Hard Drive
One Dedicated hard drive bay
320 GB 7200 rpm SMART
SATA II Hard Drive
One Dedicated hard drive bay
250 GB 7200 rpm SMART
SATA II Hard Drive
One Dedicated hard drive bay
750 GB 5400 rpm SMART
SATA II Hard Drive
One Dedicated hard drive bay
640 GB 5400 rpm SMART
SATA II Hard Drive
One Dedicated hard drive bay
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Storage
DA - 13569 North America — Version 8 — July 23, 2010 Page 14

System Unit
System UnitSystem Unit
System Unit Dimensions
DimensionsDimensions
Dimensions (HxWxD) HP ProBook 4520s:
1.09 in (at front) x 14.64 in x 9.83 in
27.7 mm (at front) x 371.8 mm x 249.6 mm
HP ProBook 4720s:
1.11 in (at front) x 16.17 in x 10.49 in
28.2 mm (at front) x 410.6 mm x 266.4 mm
Weight
WeightWeight
Weight HP ProBook 4520s:
Starting at 5.26 lb (2.39 kg) without optical drive
or 5.5 lb (2.5 kg) with optical drive
HP ProBook 4720s:
Starting at 6.51 lb (2.97 kg) without optical drive
or 6.8 lb (3.1 kg) with optical drive
NOTE:
NOTE:NOTE:
NOTE: Height varies depending upon where on the notebook the measurement is made. Weight varies
by configuration and components. Weight includes 6-cell battery, no optical drive. Weight varies by
configuration and components.
Stand-Alone Power
Stand-Alone PowerStand-Alone Power
Stand-Alone Power
Requirements
RequirementsRequirements
Requirements
(AC Power)
Nominal Operating
Voltage
18.5 V
Average Operating Power with integrated graphics: 18 W
with discrete graphics: 21 W
Max Operating Power < 90 W or < 65W
Temperature
TemperatureTemperature
Temperature Operating 32° to 95° F (0° to 35° C) (not writing optical)
41° to 95° F (5° to 35° C) (writing optical)
Non-operating -4° to 140° F (-20° to 60° C)
Relative Humidity
Relative HumidityRelative Humidity
Relative Humidity Operating 10% to 90%, non-condensing
Non-operating 5% to 95%, 101.6° F (38.7° C) maximum wet
bulb temperature
Shock
ShockShock
Shock Operating 125 G, 2 ms, half-sine
Non-operating 200 G, 2 ms, half-sine
Random Vibration
Random VibrationRandom Vibration
Random Vibration Operating 0.75 grms
Non-operating 1.50 grms
Altitude
AltitudeAltitude
Altitude
(unpressurized)
Operating -50 to 10,000 ft (-15.24 to 3,048 m)
Non-operating -50 to 40,000 ft (-15.24 to 12,192 m)
Industry Standard
Industry StandardIndustry Standard
Industry Standard
Certifications
CertificationsCertifications
Certifications
UL Yes
CSA Yes
FCC Compliance Yes
ENERGY STAR® Select models *
EPEAT Registered TBD in United States **
ICES Yes
Australia / NZ A-Tick
Compliance
Yes
CCC Yes
Japan VCCI Compliance Yes
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Technical Specifications
DA - 13569 North America — Version 8 — July 23, 2010 Page 15

MIC Yes
BSMI Yes
CE Marking Compliance Yes
BNCI or BELUS Yes
CIT Yes
GOST Yes
Saudi Arabian
Compliance (ICCP)
Yes
SABS Yes
UKRSERTCOMPUTER Yes
* Configurations of the HP ProBook 4520s and HP Probook 4720s that are ENERGY STAR qualified are
identified as HP ProBook 4520s ENERGY STAR and HP Probook 4720s ENERGY STAR on HP websites
and on www.energystar.gov .
** EPEAT registration varies by country. See www.epeat.net for registration status by country.
EPEAT status listed above applies to U.S.
NOTE:
NOTE:NOTE:
NOTE: For accessibility information on HP products, please visit: http://www.hp.com/accessibility .
HP 90W Smart AC
HP 90W Smart ACHP 90W Smart AC
HP 90W Smart AC
Adapter
AdapterAdapter
Adapter
Dimensions
DimensionsDimensions
Dimensions 5.00 x 1.97 x 1.1 in (12.7 x 5.0 x 2.9 cm)
Weight
WeightWeight
Weight 0.82 lb (370 g)
Input
InputInput
Input 100 to 240 VAC
Input Efficiency 87% min at 115 VAC
Input frequency range 47 to 63 Hz
Input AC current 1.5 A at 90 VAC, 0.75 A at 180 VAC PFC
Version
2.4 A at 90 VAC, 1.2 A at 180 VAC NON PFC
Version
Output
OutputOutput
Output Output power 90W
DC output 19.0V
Hold-up time 5 msec at 115 VAC input
Output current limit <11A, Over voltage protection- 29V max
automatic shutdown
Connector
ConnectorConnector
Connector 3 pin/grounded, mates with interchangeable cords
Environmental Design
Environmental DesignEnvironmental Design
Environmental Design Operating temperature 32° to 104° F (0° to 40° C)
Non-operating (storage)
temperature
-4° to 149° F (-20° to 65° C)
Altitude 0 to 10,000 ft (0 to 3,048 m)
Humidity 20% to 80%
Storage Humidity 10% to 90%
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Technical Specifications
DA - 13569 North America — Version 8 — July 23, 2010 Page 16

EMI and Safety
EMI and SafetyEMI and Safety
EMI and Safety
Certifications
CertificationsCertifications
Certifications
CE Mark - full compliance with LVD and EMC directives; Worldwide safety
standards - IEC60950, EN60950, UL60950, Class1, SELV; Agency
approvals - C-UL-US, NORDICS, DENAN, EN55022 Class B, FCC Class B,
CISPR22 Class B, CCC, NOM-1 NYCE; MTBF- over 200,000 hours at
25°C ambient condition.
HP 65W Smart AC
HP 65W Smart ACHP 65W Smart AC
HP 65W Smart AC
Adapter
AdapterAdapter
Adapter
Dimensions
DimensionsDimensions
Dimensions 4.17 x 1.85 x 1.1 in (10.6 x 4.7 x 2.8 cm)
Weight
WeightWeight
Weight 0.62 lb (280 g)
Input
InputInput
Input 100 to 240 VAC
Input Efficiency 87% min at 115 VAC
Input frequency range 47 to 63 Hz
Input AC current 1.7 A at 90 VAC, 0.85 A at 180 VAC
Output
OutputOutput
Output Output power 65W
DC output 18.5V
Hold-up time 5 msec at 115 VAC input
Output current limit <11A, Over voltage protection- 29V max
automatic shutdown
Connector
ConnectorConnector
Connector 3 pin/grounded, mates with interchangeable cords
Environmental Design
Environmental DesignEnvironmental Design
Environmental Design Operating temperature 32° to 104° F (0° to 40° C)
Non-operating (storage)
temperature
-4° to 149° F (-20° to 65° C)
Altitude 0 to 10,000 ft (0 to 3,048 m)
Humidity 20% to 80%
Storage Humidity 10% to 90%
EMI and Safety
EMI and SafetyEMI and Safety
EMI and Safety
Certifications
CertificationsCertifications
Certifications
CE Mark - full compliance with LVD and EMC directives; Worldwide safety
standards - IEC60950, EN60950, UL60950, Class1, SELV; Agency
approvals - C-UL-US, NORDICS, DENAN, EN55022 Class B, FCC Class B,
CISPR22 Class B, CCC, NOM-1 NYCE; MTBF - over 200,000 hours at
25°C ambient condition.
NOTE:
NOTE:NOTE:
NOTE: Unless otherwise noted, temperature limits listed in the following component specifications relate to the internal temperatures
of these components and not to the environment in which the PC is operating.
Displays
DisplaysDisplays
Displays
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Technical Specifications
DA - 13569 North America — Version 8 — July 23, 2010 Page 17

17.3-inch LED HD+ anti-
17.3-inch LED HD+ anti-17.3-inch LED HD+ anti-
17.3-inch LED HD+ anti-
glare
glareglare
glare
Active Area
Active AreaActive Area
Active Area (W x H) 15.0 x 8.5 in (38.2 x 21.5 cm)
Diagonal Size
Diagonal SizeDiagonal Size
Diagonal Size 17.3 in (43.9 cm)
Surface Treatment
Surface TreatmentSurface Treatment
Surface Treatment Anti-glare
Contrast Ratio
Contrast RatioContrast Ratio
Contrast Ratio 400:1 typical
Refresh Rate
Refresh RateRefresh Rate
Refresh Rate 60 Hz
Brightness
BrightnessBrightness
Brightness 200 nit typical
Pixel Resolution
Pixel ResolutionPixel Resolution
Pixel Resolution Pitch
PitchPitch
Pitch 0.23868 x 0.23868 mm
Format
FormatFormat
Format 1600 x 900
Configuration
ConfigurationConfiguration
Configuration RGB Stipe
Backlight
BacklightBacklight
Backlight LED
PPI
PPIPPI
PPI 107
Viewing Angle
Viewing AngleViewing Angle
Viewing Angle ±30° Horizontal, ±10° Vertical (minimum)
30/30/20/10 (Left/Right/Down/Up) (minimum) or
45/45/35/25 (Left/Right/Down/Up) (typical)
15.6-inch LED HD (1366
15.6-inch LED HD (136615.6-inch LED HD (1366
15.6-inch LED HD (1366
x 768)
x 768)x 768)
x 768)
anti-glare
anti-glareanti-glare
anti-glare
Dimensions
DimensionsDimensions
Dimensions (W x H) 13.54 x 7.59 in (34.4 x 19.4 cm)
Diagonal Size
Diagonal SizeDiagonal Size
Diagonal Size 15.6 in (39.6cm)
Surface Treatment
Surface TreatmentSurface Treatment
Surface Treatment Anti-glare
Contrast Ratio
Contrast RatioContrast Ratio
Contrast Ratio 400:1 (min)
Refresh Rate
Refresh RateRefresh Rate
Refresh Rate 60 Hz
Brightness
BrightnessBrightness
Brightness 210 nit (typical)
Pixel Resolution
Pixel ResolutionPixel Resolution
Pixel Resolution Pitch
PitchPitch
Pitch 0.252 mm
Format
FormatFormat
Format 1366 x 768
Configuration
ConfigurationConfiguration
Configuration RGB Stripe
Backlight
BacklightBacklight
Backlight LED
PPI
PPIPPI
PPI 101 ppi
Viewing Angle
Viewing AngleViewing Angle
Viewing Angle ±30° Horizontal, ±10° Vertical (minimum)
30/30/20/10 (Left/Right/Down/Up) (minimum) or
45/45/35/25 (Left/Right/Down/Up) (typical)
Internal Storage
Internal StorageInternal Storage
Internal Storage
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Technical Specifications
DA - 13569 North America — Version 8 — July 23, 2010 Page 18

750 GB 5400 rpm SATA
750 GB 5400 rpm SATA750 GB 5400 rpm SATA
750 GB 5400 rpm SATA
Hard Drive
Hard DriveHard Drive
Hard Drive
Drive Weight
Drive WeightDrive Weight
Drive Weight 0.27 lb (125 g)
Capacity
CapacityCapacity
Capacity 750 GB
Height
HeightHeight
Height 0.50 in (12.7 mm)
Width
WidthWidth
Width 2.75 in (70 mm)
Interface
InterfaceInterface
Interface ATA-8, SATA 2.6, 3.0 Gb/s, NCQ
Transfer Rate
Transfer RateTransfer Rate
Transfer Rate Synchronous
SynchronousSynchronous
Synchronous (maximum) 150 MB/s (Drive Capability)
Seek Time
Seek TimeSeek Time
Seek Time
(typical reads, including
settling)
Single Track
Single TrackSingle Track
Single Track 2 ms
Average
AverageAverage
Average 12ms
Maximum
MaximumMaximum
Maximum 22 ms
Rotational Speed
Rotational SpeedRotational Speed
Rotational Speed 5400 rpm
Logical Blocks
Logical BlocksLogical Blocks
Logical Blocks 1,465,149,168
Operating Temperature
Operating TemperatureOperating Temperature
Operating Temperature 32° to 140° F (0° to 60° C) [case temp]
Features
FeaturesFeatures
Features ATA Security
500 GB 7200 rpm SATA
500 GB 7200 rpm SATA500 GB 7200 rpm SATA
500 GB 7200 rpm SATA
Hard Drive
Hard DriveHard Drive
Hard Drive
Drive Weight
Drive WeightDrive Weight
Drive Weight 0.25 lbs (115g)
Capacity
CapacityCapacity
Capacity 500 GB
Height
HeightHeight
Height 0.37 in (9.5 mm)
Width
WidthWidth
Width 2.75 in (70 mm)
Interface
InterfaceInterface
Interface ATA-8, SATA 2.6, 3.0 Gb/s, NCQ
Transfer Rate
Transfer RateTransfer Rate
Transfer Rate Synchronous
SynchronousSynchronous
Synchronous (maximum) 150 MB/s (Drive Capability)
Seek Time
Seek TimeSeek Time
Seek Time
(typical reads, including
settling)
Single Track
Single TrackSingle Track
Single Track 1.5ms
Average
AverageAverage
Average 11ms
Maximum
MaximumMaximum
Maximum 22ms
Rotational Speed
Rotational SpeedRotational Speed
Rotational Speed 7200 rpm
Logical Blocks
Logical BlocksLogical Blocks
Logical Blocks 976,773,168
Operating Temperature
Operating TemperatureOperating Temperature
Operating Temperature 32° to 140° F (0° to 60° C) [case temp]
Features
FeaturesFeatures
Features ATA Security
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Technical Specifications
DA - 13569 North America — Version 8 — July 23, 2010 Page 19

320 GB 7200 rpm SATA
320 GB 7200 rpm SATA320 GB 7200 rpm SATA
320 GB 7200 rpm SATA
Hard Drive
Hard DriveHard Drive
Hard Drive
Drive Weight
Drive WeightDrive Weight
Drive Weight 0.25 lbs (115g)
Capacity
CapacityCapacity
Capacity 250 GB
Height
HeightHeight
Height 0.37 in (9.5 mm)
Width
WidthWidth
Width 2.75 in (70 mm)
Interface
InterfaceInterface
Interface ATA-8, SATA 2.6, 3.0 Gb/s, NCQ
Transfer Rate
Transfer RateTransfer Rate
Transfer Rate Synchronous
SynchronousSynchronous
Synchronous (maximum) 150 MB/s (Drive Capability)
Seek Time
Seek TimeSeek Time
Seek Time
(typical reads, including
settling)
Single Track
Single TrackSingle Track
Single Track 1.5ms
Average
AverageAverage
Average 11ms
Maximum
MaximumMaximum
Maximum 22ms
Rotational Speed
Rotational SpeedRotational Speed
Rotational Speed 7200 rpm
Logical Blocks
Logical BlocksLogical Blocks
Logical Blocks 625,142,448
Operating Temperature
Operating TemperatureOperating Temperature
Operating Temperature 32° to 140° F (0° to 60° C) [case temp]
Features
FeaturesFeatures
Features ATA Security
250 GB 7200 rpm SATA
250 GB 7200 rpm SATA250 GB 7200 rpm SATA
250 GB 7200 rpm SATA
Hard Drive
Hard DriveHard Drive
Hard Drive
Drive Weight
Drive WeightDrive Weight
Drive Weight 0.25 lbs (115g)
Capacity
CapacityCapacity
Capacity 250 GB
Height
HeightHeight
Height 0.37 in (9.5 mm)
Width
WidthWidth
Width 2.75 in (70 mm)
Interface
InterfaceInterface
Interface ATA-8, SATA 2.6, 3.0 Gb/s, NCQ
Transfer Rate
Transfer RateTransfer Rate
Transfer Rate Synchronous
SynchronousSynchronous
Synchronous (maximum) 150 MB/s (Drive Capability)
Seek Time
Seek TimeSeek Time
Seek Time
(typical reads, including
settling)
Single Track
Single TrackSingle Track
Single Track 1.5ms
Average
AverageAverage
Average 11ms
Maximum
MaximumMaximum
Maximum 22ms
Rotational Speed
Rotational SpeedRotational Speed
Rotational Speed 7200 rpm
Logical Blocks
Logical BlocksLogical Blocks
Logical Blocks 488,397,168
Operating Temperature
Operating TemperatureOperating Temperature
Operating Temperature 32° to 140° F (0° to 60° C) [case temp]
Features
FeaturesFeatures
Features ATA Security
Optical Drives
Optical DrivesOptical Drives
Optical Drives
QuickSpecs
HP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PCHP ProBook 4520s Notebook PC
HP ProBook 4520s Notebook PC
HP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PCHP ProBook 4720s Notebook PC
HP ProBook 4720s Notebook PC
Technical Specifications
DA - 13569 North America — Version 8 — July 23, 2010 Page 20