Dell Vostro 3581 User manual

Precision 3581
Technical Guidebook
Regulatory Model: P127F
Regulatory Type: P127F002
March 2023
Rev. A00

Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid
the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
© 2023 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.

Chapter 1: Views of Precision 3581................................................................................................ 5
Right....................................................................................................................................................................................... 5
Left..........................................................................................................................................................................................6
Top.......................................................................................................................................................................................... 7
Display.................................................................................................................................................................................... 8
Bottom................................................................................................................................................................................... 9
Service Tag........................................................................................................................................................................... 9
Battery charge and status light .....................................................................................................................................10
Chapter 2: Specifications of Precision 3581..................................................................................11
Dimensions and weight......................................................................................................................................................11
Processor..............................................................................................................................................................................11
Chipset..................................................................................................................................................................................12
Operating system...............................................................................................................................................................13
Memory.................................................................................................................................................................................13
External ports......................................................................................................................................................................13
Internal slots........................................................................................................................................................................14
Ethernet............................................................................................................................................................................... 14
Wireless module..................................................................................................................................................................14
WWAN module....................................................................................................................................................................15
Audio..................................................................................................................................................................................... 16
Storage................................................................................................................................................................................. 17
Media-card reader ............................................................................................................................................................ 17
Keyboard.............................................................................................................................................................................. 17
Keyboard function keys.................................................................................................................................................... 18
Camera................................................................................................................................................................................. 19
Touchpad............................................................................................................................................................................. 19
Power adapter................................................................................................................................................................... 20
Battery................................................................................................................................................................................. 20
Display...................................................................................................................................................................................21
Fingerprint reader (optional).......................................................................................................................................... 22
Sensor ................................................................................................................................................................................. 22
GPU—Integrated.............................................................................................................................................................. 23
GPU—Discrete.................................................................................................................................................................. 23
External display support.................................................................................................................................................. 23
Hardware security............................................................................................................................................................. 23
Smart-card reader.............................................................................................................................................................24
Contactless smart-card reader................................................................................................................................ 24
Contacted smart-card reader...................................................................................................................................25
Operating and storage environment.............................................................................................................................26
Chapter 3: Engineering specifications......................................................................................... 28
Ethernet...............................................................................................................................................................................28
Integrated Connection I219-LM............................................................................................................................... 28
Contents
Contents 3

Wireless module.................................................................................................................................................................29
Realtek RTL8852BE, 2x2, Wi-Fi 6 (Wi-Fi 802.11 a/b/g/n/ac/ax), Bluetooth wireless card................... 29
Intel AX211, 2x2 MIMO, 2400 Mbps, 2.4/5/6 GHz, Wi-Fi 6E (WiFi 802.11ax), Bluetooth wireless
card.............................................................................................................................................................................30
WWAN module....................................................................................................................................................................31
Intel XMM 7560 Global LTE-Advanced ................................................................................................................. 31
Intel 5000 Global 5G Modem .................................................................................................................................. 32
GPU—Integrated.............................................................................................................................................................. 32
Intel Iris XeGraphics................................................................................................................................................... 32
Intel UHD Graphics......................................................................................................................................................33
Video port and resolution matrix................................................................................................................................... 33
Storage................................................................................................................................................................................ 34
M.2 2230, 256 GB, PCIe NVMe Gen4 x4, Class 35 SSD...................................................................................34
M.2 2230, 512 GB, PCIe NVMe Gen4 x4, Class 35 SSD................................................................................... 34
M.2 2230, 1 TB, PCIe NVMe Gen4 x4, Class 35 SSD.........................................................................................35
M.2 2230, 256 GB, PCIe NVMe Gen4 x4, Opal Self-Encrypting, Class 35 SSD......................................... 35
M.2 2280, 512 GB, PCIe NVMe Gen4 x4, Class 40 SSD................................................................................... 36
M.2 2280, 1 TB, PCIe NVMe Gen4 x4, Class 40 SSD.........................................................................................37
M.2 2280, 2 TB, PCIe NVMe Gen4 x4, Class 40 SSD........................................................................................ 37
Power adapter....................................................................................................................................................................38
Accessories.........................................................................................................................................................................38
Security................................................................................................................................................................................39
Software security........................................................................................................................................................ 39
Fingerprint reader........................................................................................................................................................40
Dell ControlVault 3.0 ................................................................................................................................................. 40
Trusted Platform Module........................................................................................................................................... 41
Thermal and acoustic improvements............................................................................................................................ 41
System management features........................................................................................................................................ 41
Dell Client Command Suite for In-Band systems management ....................................................................... 41
Out of Band Systems Management........................................................................................................................42
Chapter 4: ComfortView Plus...................................................................................................... 43
Chapter 5: Using the privacy shutter...........................................................................................44
Chapter 6: Dell Optimizer............................................................................................................ 45
Chapter 7: Color, material, and finish ......................................................................................... 46
Chapter 8: Getting help and contacting Dell................................................................................ 47
4Contents

Views of Precision 3581
Right
1. microSD-card slot
Reads from and writes to the microSD-card.
2. Universal audio jack
Connect headphones or a headset (headphone and microphone combo).
3. USB 3.2 Gen 1 port
Connect devices such as external storage devices and printers. Provides data transfer speeds up to 5 Gbps.
4. USB 3.2 Gen 1 port with PowerShare
Connect devices such as external storage devices and printers.
Provides data transfer speeds up to 5 Gbps. PowerShare enables you to charge your USB devices even when your computer
is turned off.
NOTE: If the charge on your computer’s battery is less than 10 percent, you must connect the power adapter to charge
your computer, and USB devices connected to the PowerShare port.
NOTE: If a USB device is connected to the PowerShare port before the computer is turned off or in hibernate state,
you must disconnect and connect it again to enable charging.
NOTE: Certain USB devices may not charge when the computer is turned off or in sleep state. In such cases, turn on
the computer to charge the device.
5. HDMI 2.0 port
Connect to a TV, external display or another HDMI-in enabled device. Provides video and audio output.
6. Network port
Connect an Ethernet (RJ-45) cable from a router or a broadband modem for network or Internet access, with a transfer rate
of 10/100/1000 Mbps.
7. Security-cable slot (wedge-shaped)
Connect a security cable to prevent unauthorized movement of your computer.
1
Views of Precision 3581 5

Left
1. Thunderbolt 4.0 port with Power Delivery and DisplayPort
Supports USB4, DisplayPort 1.4, Thunderbolt 4 and also enables you to connect to an external display using a display adapter.
Provides data transfer rates of up to 40 Gbps for USB4 and Thunderbolt 4.
NOTE: You can connect a Dell Docking Station to the Thunderbolt 4 ports. For more information, search in the
Knowledge Base Resource at www.dell.com/support.
NOTE: A USB Type-C to DisplayPort adapter (sold separately) is required to connect a DisplayPort device.
NOTE: USB4 is backward compatible with USB 3.2, USB 2.0, and Thunderbolt 3.
NOTE: Thunderbolt 4 supports two 4K displays or one 8K display.
2. Thunderbolt 4.0 port with Power Delivery and DisplayPort
Supports USB4, DisplayPort 1.4, Thunderbolt 4 and also enables you to connect to an external display using a display adapter.
Provides data transfer rates of up to 40 Gbps for USB4 and Thunderbolt 4.
NOTE: You can connect a Dell Docking Station to the Thunderbolt 4 ports. For more information, search in the
Knowledge Base Resource at www.dell.com/support.
NOTE: A USB Type-C to DisplayPort adapter (sold separately) is required to connect a DisplayPort device.
NOTE: USB4 is backward compatible with USB 3.2, USB 2.0, and Thunderbolt 3.
NOTE: Thunderbolt 4 supports two 4K displays or one 8K display.
3. Battery-status light
Indicates the battery-charge status.
Solid yellow—Battery charge is low.
Blinking yellow—Battery charge is critical.
4. Smart-card reader slot (optional)
6Views of Precision 3581

Top
1. Power button with optional fingerprint reader
Press to turn on the computer if it is turned off, in sleep state, or in hibernate state.
When the computer is turned on, press the power button to put the computer into sleep state; press and hold the power
button for 10 seconds to force shut-down the computer.
If the power button has a fingerprint reader, place your finger on the power button steadily to log in.
NOTE: The power-status light on the power button is available only on computers without the fingerprint reader.
Computers that are shipped with the fingerprint reader that is integrated on the power button will not have the
power-status light on the power button.
NOTE: You can customize the power-button behavior in Windows.
2. Keyboard
3. NFC/Contactless smart card reader (optional)
Provides contactless access of cards in corporate networks.
4. Touchpad
Move your finger on the touchpad to move the mouse pointer. Tap to left-click and two fingers tap to right-click.
Views of Precision 3581 7

Display
1. Left microphone
Provides digital sound input for audio recording and voice calls.
2. Infrared emitter (optional)
Emits infrared light, which enables the infrared camera to sense and track motion.
3. Infrared camera (optional)
Enhances security when paired with Windows Hello face authentication.
4. Camera shutter
Slide the privacy shutter to the left to access the camera lens.
5. Camera
Enables you to video chat, capture photos, and record videos.
6. Camera-status light
Turns on when the camera is in use.
7. Ambient-light sensor
The sensor detects the ambient light and automatically adjusts the display brightness.
8. Right microphone
Provides digital sound input for audio recording and voice calls.
8Views of Precision 3581

Bottom
1. Speakers
Provide audio output.
2. Service Tag label
The Service Tag is a unique alphanumeric identifier that enables Dell service technicians to identify the hardware
components in your computer and access warranty information.
3. Fan vents
Service Tag
The service tag is a unique alphanumeric identifier that allows Dell service technicians to identify the hardware components in
your computer and access warranty information.
Views of Precision 3581 9

Battery charge and status light
The following table lists the battery charge and status light behavior of your Precision 3581.
Table 1. Battery charge and status light behavior
Power Source LED Behavior System Power State Battery Charge Level
AC Adapter Off S0 - S5 Fully Charged
AC Adapter Solid White S0 - S5 < Fully Charged
Battery Off S0 - S5 11-100%
Battery Solid Amber (590+/-3 nm) S0 - S5 < 10%
●S0 (ON) - System is turned on.
●S4 (Hibernate) - The system consumes the least power compared to all other sleep states. The system is almost at an OFF
state, expect for a trickle power. The context data is written to hard drive.
●S5 (OFF) - The system is in a shutdown state.
10 Views of Precision 3581

Specifications of Precision 3581
Dimensions and weight
The following table lists the height, width, depth, and weight of your Precision 3581.
Table 2. Dimensions and weight
Description Values
Height:
Front height 22.70mm (0.89 in.)
Rear height 24.70mm(0.97 in.)
Width 357.80 mm (14.09 in.)
Depth 233.30 mm (9.19 in.)
Weight
NOTE: The weight of your computer depends on the
configuration ordered and manufacturing variability.
1.795 kg (3.96 lb)
Processor
The following table lists the details of the processors supported by your Precision 3581.
2
Specifications of Precision 3581 11

Table 3. Processor
Description Option one Option two Option three Option four
Processor type 13th Generation Intel
Core i5-13600H Intel
vPro Enterprise
13th Generation Intel
Core i7-13700H Intel
vPro Essentials
13th Generation Intel
Core i7-13800H Intel
vPro Enterprise
13th Generation Intel
Core i9-13900H Intel
vPro Enterprise
Processor wattage 45 W 45 W 45 W 45 W
Processor total core
count 12 14 14 14
Performance-cores 4 6 6 6
Efficient-cores 8 8 8 8
Processor total thread
counts
NOTE: Intel
Hyper-Threading
Technology is
only available
on Performance-
cores.
16 20 20 20
Processor speed Up to 4.80 GHz Up to 5 GHz Up to 5.20 GHz Up to 5.40 GHz
Performance-cores frequency
Processor base
frequency 2.80 GHz 2.40 GHz 2.50 Ghz 2.60 GHz
Maximum turbo
frequency 4.80 GHz 5 GHz 5.20 Ghz 5.40 GHz
Efficient-cores frequency
Processor base
frequency 2.10 GHz 1.80 GHz 1.80 Ghz 1.90 GHz
Maximum turbo
frequency 3.60 GHz 3.70 GHz 4 Ghz 4.10 GHz
Processor cache 18 MB 24 MB 24 MB 24 MB
Integrated graphics Intel Iris Xe Graphics Intel Iris Xe Graphics Intel Iris Xe Graphics Intel Iris Xe Graphics
Chipset
The following table lists the details of the chipset supported by your Precision 3581.
Table 4. Chipset
Description Values
Chipset Integrated in the processor
Processor 13th Generation Intel Core i5/i7/i9
DRAM bus width 64-bit
Flash EPROM 32 MB+16 MB for vPro
12 Specifications of Precision 3581

Table 4. Chipset (continued)
Description Values
PCIe bus Up to Gen 4
Operating system
Your Precision 3581 supports the following operating systems:
●Windows 11 Home, 64-bit, Windows 10 downgrade capable
●Windows 11 Pro, 64-bit
●Windows 10 China G-SKU, 64-bit
●Ubuntu 22.04 LTS, 64-bit
Memory
The following table lists the memory specifications of your Precision 3581.
Table 5. Memory specifications
Description Values
Memory slots Two-SODIMM slots
Memory type ●Single-channel DDR5
●Dual-channel DDR5
Memory speed 4800 MHz
Maximum memory configuration 64 GB
Minimum memory configuration 8 GB
Memory size per slot 8 GB, 16 GB, or 32 GB
Memory configurations supported ●8 GB, 1 x 8 GB, DDR5, 4800 MHz, single-channel
●16 GB, 2 x 8 GB, DDR5, 4800 MHz, dual-channel
●16 GB, 1 x 16 GB, DDR5, 4800 MHz, single-channel
●32 GB, 2 x 16 GB, DDR5, 4800 MHz, dual-channel
●64 GB, 2 x 32 GB, DDR5, 4800 MHz, dual-channel
External ports
The following table lists the external ports of your Precision 3581.
Table 6. External ports
Description Values
Network port One RJ-45 port
USB ports ●Two Thunderbolt 4 port with DisplayPort Alt Mode/USB
Type-C/USB4/Power Delivery
NOTE: You can connect a Dell Docking Station to this
port. For more information, search in the Knowledge
Base Resource at www.dell.com/support.
Specifications of Precision 3581 13

Table 6. External ports (continued)
Description Values
●One USB 3.2 Gen 1 port with PowerShare
●One USB 3.2 Gen 1 port
Audio port One Universal audio jack
Video port One HDMI 2.0 port
Media-card reader One smart card reader slot (optional)
Power-adapter port Type-C adapter
Security-cable slot One security-cable slot (wedge-shaped)
Internal slots
The following table lists the internal slots of your Precision 3581.
Table 7. Internal slots
Description Values
M.2 ●One M.2 2230 slot for WiFi and Bluetooth combo card
●Two M.2 2230/2280 slot for solid-state drive
●One M.2 3042/3052 slot for WWAN (optional)
NOTE: To learn more about the features of different
types of M.2 cards, search in the Knowledge Base
Resource at www.dell.com/support.
Ethernet
The following table lists the wired Ethernet Local Area Network (LAN) specifications of your Precision 3581.
Table 8. Ethernet specifications
Description Values
Model number Intel I219-LM
Transfer rate 10/100/1000 Mbps
Wireless module
The following table lists the Wireless Local Area Network (WLAN) modules supported on your Precision 3581.
Table 9. Wireless module specifications
Description Option one Option two
Model number Realtek RTL8852BE Intel AX211
Transfer rate Up to 1201 Mbps Up to 2400 Mbps
Frequency bands supported 2.4 GHz/5 GHz 2.4 GHz/5 GHz/6 GHz
14 Specifications of Precision 3581

Table 9. Wireless module specifications (continued)
Description Option one Option two
Wireless standards ●WiFi 802.11a/b/g
●Wi-Fi 4 (WiFi 802.11n)
●Wi-Fi 5 (WiFi 802.11ac)
●Wi-Fi 6 (WiFi 802.11ax)
●WiFi 802.11a/b/g
●Wi-Fi 4 (WiFi 802.11n)
●Wi-Fi 5 (WiFi 802.11ac)
●Wi-Fi 6E (WiFi 802.11ax)
Encryption ●64-bit/128-bit WEP
●AES-CCMP
●TKIP
●64-bit/128-bit WEP
●AES-CCMP
●TKIP
Bluetooth Bluetooth wireless card Bluetooth wireless card
WWAN module
The following table lists the Wireless Wide Area Network (WWAN) module supported on your Precision 3581.
Table 10. WWAN module specifications
Description Option one Option two
Model number DW5823, Intel XMM 7560 R Global LTE-
Advanced, CAT16
5G DW5931e, Intel 5G 5000 Global
Gigabit NR/LTE, 3GPP Release 15
Form factor M.2 3042 Key-B M.2 3042 Key-B
Host interface PCIe Gen2 PCIe Gen3
Network standard LTE FDD/TDD, WCDMA/HSPA+,GPS/
GLONASS/BDS/Galileo
LTE FDD/TDD, WCDMA/HSPA+, GNSS/
Beidou NR FR1(Sub6) FDD/TDD,
LTE FDD/TDD, WCDMA/HSPA+, GPS/
GLONASS/Galileo/BDS/QZSS
Transfer data rate ●Up to 1 Gbps DL (CAT16)
●Up 150 Mbps UL
●SA: DL 4.67Gbps/UL 1.25Gbps
●NSA: DL 3.74Gbps/UL 700Mbps
●LTE: DL 1.6Gbps (CAT19)/UL
150Mbps
●UMTS: DL 384 kbps/UL 384 kbps
DL DC-HSPA+: 42 Mbps (CAT24)/UL
11.5 Mbps (CAT7)
Operating frequency bands ●LTE(B1, B2, B3, B4, B5, B7, B8, B12,
B13, B14, B17, B18, B19, B20, B25, B26,
B28, B29, B30, B32, B34, B38, B39,
B40, B41(HPUE), B42, B43, B46(receiver
only), B48, B66, B71
●WCDMA/HSPA+(1, 2, 4, 5, 8)
●NR(n1, n2, n3, n5, n7, n8, n20, n25,
n28, n30, n38, n40, n41, n48, n66, n71,
n77, n78, n79)
●LTE (B1, B2, B3, B4, B5, B7, B8, B12,
B13, B14, B17, B18, B19, B20, B25,
B26, B28, B29, B30, B32, B34, B38,
B39, B40, B41, B42, B43, B46, B48,
B66, B71*)
●WCDMA/HSPA+ (1, 2, 4, 5, 8)
Power supply DC 3.135 V to 4.40 V, typical 3.30 V DC 3.135 V to 4.4 V, Typical 3.3 V
SIM card Supported through external SIM slot Supported through external SIM slot
eSIM with dual SIM (DSSA) Supported (the availability of eSIM
functionality embedded on the module is
Supported
Specifications of Precision 3581 15

Table 10. WWAN module specifications (continued)
Description Option one Option two
dependent on the region and specific carrier
requirements)
Antenna diversity Supported Supported
Radio On/Off Supported Supported
Wake on wireless Supported Supported
Temperature ●Normal operating temperature: -10°C to
+ 55°C
●Extended Operating temperature: -20°C
to +65°C
●Normal operating temperature: -10°C
to + 55°C
●Extended Operating temperature:
-30°C to +75°C
●Storage temperature: -40°C to
+85°C
Antenna connector ●WWAN Main Antenna x 4
●Supports 4x4 MIMO
●WWAN Main Antenna x 4
●Supports 4x4 MIMO
NOTE: For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number,
search in the Knowledge Base Resource at www.dell.com/support.
Audio
The following table lists the audio specifications of your Precision 3581.
Table 11. Audio specifications
Description Values
Audio controller Realtek Waves, MaxxAudio 12.0
Stereo conversion Supported
Internal audio interface High definition audio interface
External audio interface Universal Audio Jack/HDMI 2.0 port
Number of speakers 2
Internal-speaker amplifier Not supported
External volume controls Keyboard shortcut controls
Speaker output:
Average speaker output 2 W
Peak speaker output 2 W
Subwoofer output Not supported
Microphone Digital-array microphones in camera assembly
16 Specifications of Precision 3581

Storage
This section lists the storage options on your Precision 3581.
Your Precision 3581 supports Two M.2 2230/2280 solid-state drives
Table 12. Storage specifications
Storage type Interface type Capacity
M.2 2230/2280 solid-state drive PCIe Gen4 x4 NVMe, up to 64 Gbps 2 TB
M.2 2230 self-encrypting drive PCIe Gen4 x4 NVMe, up to 64 Gbps 256 GB
Media-card reader
The following table lists the media-card reader specifications of your Precision 3581.
Table 13. Media-card reader (standard offering)
Description Values
Media supported (Maximum capacity supported will vary by Flash Media Types)
Media Supported ●Micro Secure Digital (mSD)
●Micro Secure Digital High Capacity (mSDHC)
●Micro Secure Digital Extended Capacity (mSDXC)
Support Specification Versions microSD 4.0 card
Keyboard
The following table lists the keyboard specifications of your Precision 3581.
Table 14. Keyboard specifications
Description Values
Keyboard type Standard keyboard
Keyboard layout QWERTY
Number of keys ●United States and Canada: 99 keys
●United Kingdom: 100 keys
●Japan: 103 keys
●Canada: 99 keys
●French-Canadian Quebec: 100 keys
●French-Canadian: 99 keys
Keyboard size X=18.05 mm key pitch
Y=18.05 mm key pitch
Key distance (Key size: X/Y) X=15.05 mm
Y=15.05 mm
Keyboard shortcuts Some keys on your keyboard have two symbols on them.
These keys can be used to type alternate characters or to
perform secondary functions. To type the alternate character,
Specifications of Precision 3581 17

Table 14. Keyboard specifications (continued)
Description Values
press Shift and the desired key. To perform secondary
functions, press fn and the desired key.
NOTE: You can define the primary behavior of the
function keys (F1–F12) changing Function Key Behavior
in BIOS setup program.
Keyboard function keys
The F1-F12 keys at the top of the keyboard are function keys. By default, these keys are used to perform specific functions
defined by the software application in use.
You can run the secondary tasks that are indicated by the symbols on the function keys by pressing the function key with fn, for
example, fn and F1. See the table below for the list of secondary tasks and the key combinations to run them.
NOTE: Keyboard characters may differ depending on the keyboard language configuration. Keys that are used for tasks
remain the same, regardless of the keyboard language.
NOTE: You can define the primary behavior of function keys in the Function Key Behavior menu of the BIOS setup
program.
Table 15. Secondary tasks of keyboard keys
Key combination for task What the task does
fn and F1 Operating system and application specific F1 behavior
fn and F2 Operating system and application specific F2 behavior
fn and F3 Operating system and application specific F3 behavior
fn and F4 Operating system and application specific F4 behavior
fn and F5 Operating system and application specific F5 behavior
fn and F6 Operating system and application specific F6 behavior
fn and F8 Operating system and application specific F8 behavior
fn and F9 Operating system and application specific F9 behavior
fn and F10 Operating system and application specific F10 behavior
fn and F11 Operating system and application specific F11 behavior
fn and F12 Operating system and application specific F12 behavior
fn and Right Ctrl Open application menu
fn and Cursor up Page up
fn and Cursor down Page down
Keys with alternate characters
There are other keys on your keyboard with alternate characters. The symbols that are shown at the bottom of these keys
are the main characters that are displayed when the key is pressed; the symbols that are shown at the top of these keys are
displayed when the key is pressed with the shift key. For example, if you press 2, 2is displayed; if you press Shift and 2, @is
displayed.
18 Specifications of Precision 3581

Camera
The following table lists the camera specifications of your Precision 3581.
Table 16. Camera specifications
Description Values
Number of cameras One
Camera type ●FHD RGB camera
●FHD RGB + IR camera
●FHD RGB+IR camera with Ambient Light Sensor, Express
Sign-In with Presence Detection and Intelligent Privacy
Camera location Front camera
Camera sensor type CMOS sensor technology
Camera resolution:
Still image 2.07 megapixels
Video 1920 x 1080 (FHD) at 30 fps
Infrared camera resolution:
Still image 0.23 megapixels
Video 640 x 360 at 30 fps
Diagonal viewing angle:
Camera 80 degrees
Infrared camera 86.6 degrees
Touchpad
The following table lists the touchpad specifications of your Precision 3581.
Table 17. Touchpad specifications
Description Values
Touchpad resolution: >300 DPI
Touchpad dimensions:
Horizontal 115 mm
Vertical 67 mm
Touchpad gestures For more information about touchpad gestures available on:
●Windows, see the Microsoft knowledge base article at
support.microsoft.com
●Ubuntu, see ubuntu.com/support
Specifications of Precision 3581 19

Power adapter
The following table lists the power adapter specifications of your Precision 3581.
Table 18. Power adapter specifications
Description Option one Option two
Type 100 W USB-C 130 W, USB-C
Input voltage 100 VAC - 240 VAC 100 VAC - 240 VAC
Input frequency 50 Hz – 60 Hz 50 Hz – 60 Hz
Input current (maximum) 1.7A 1.8A
Output current (continuous) ●20V/5A (Continuous)
●15V/3A (Continuous)
●9.0V/3A (Continuous)
●5.0V/3A (Continuous)
●20V/6.5A (Continuous)
●5.0V/1A (Continuous)
Rated output voltage 20VDC/15VDC/9VDC/5VDC 20VDC/5VDC
Temperature range:
Operating 0oto 40oC (32oF to 104oF 0oto 40oC (32oF to 104oF
Storage - 40oto 70oC (-40°F to 158°F) - 40oto 70oC (-40°F to 158°F)
CAUTION: Operating and storage temperature ranges may differ among components, so operating or storing
the device outside these ranges may impact the performance of specific components.
Battery
The following table lists the battery specifications of your Precision 3581.
Table 19. Battery specifications
Description Option one Option two
Battery type 4-cell "smart" lithium-ion 64 Wh 6-cell "smart" lithium-ion 97 Wh
Battery voltage 15.2 VDC 11.4 VDC
Battery weight (maximum) 0.28 kg (0.49 lb) 0.42 kg (0.92 lb)
Battery dimensions:
Height 7.6 mm (0.29 in.) 7.6 mm (0.29 in.)
Width 226.6 mm (8.92 in.) 336 mm (13.22 in.)
Depth 81.40 mm (3.20 in.) 81.40 mm (3.20 in.)
Temperature range:
Operating ●Charge: 0°C to 45°C (32°F to
113°F)
●Discharge: 0°C to 70°C (32°F to
158°F)
●Charge: 0°C to 45°C (32°F to 113°F)
●Discharge: 0°C to 70°C (32°F to
158°F)
20 Specifications of Precision 3581