Logitech MK540 Dimensions

MK540 ADVANCED FAQs 1
MK540 ADVANCED Wireless Keyboard and Mouse Combo
INDEX
GETTING STARTED
●Product overview
●Keyboard features
○Hotkeys
○Function key shortcuts
○Tilt legs
○LED indicators
SPECIFICATIONS
●Product information
●Product dimensions
●Related products
●General product specifications
●Keyboard specifications
●Mouse specifications
FAQs
●My NumPad/KeyPad is not working, what should I do?
●Operating distance between the mouse or keyboard and USB receiver
●Backup device settings to the cloud in Logitech Options+
●MK540 wireless keyboard and mouse frequently lose connection

MK540 ADVANCED FAQs 2
●Connect device to a Unifying receiver
●MK540 wireless keyboard battery life and replacement
●MK540 mouse battery life and replacement
●Customize the MK540 keyboard or mouse with Logitech Options
WARRANTY
●Hardware warranty
CONTACT US
●Logitech Support
DOWNLOAD
●Logitech Options

MK540 ADVANCED FAQs 3
GETTING STARTED
1. Turn on your MK540 keyboard and mouse.
2. To connect the MK540 mouse and keyboard, plug the provided Unifying receiver into a
USB port on your computer.
Product Overview
1. Media hotkeys
2. Battery indicator light
3. On/Off
4. Caps Lock indicator light
5. Palm rest
6. Shortcut keys
7. USB receiver
8. Battery indicator light

MK540 ADVANCED FAQs 4
Keyboard Features
Hotkeys
1. Backward
2. Play/Pause
3. Forward
4. Mute
5. Volume down
6. Volume up
7. Calculator
8. Battery check
9. Lock PC
10. Home Internet Browser
Function key shortcuts
To access the functions below, first press and hold the FN key, then press the F-key you want
to use:

MK540 ADVANCED FAQs 5
1. Internet forward
2. Internet back
3. Internet new tab
(Ctrl+T)
4. Close window
(Ctrl+F4)
5. Windows search
6. Zoom in
7. Zoom out
8. Show desktop
9. Save (Ctrl+S)
10. Print (Ctrl+P)
11. Windows settings
12. PC Standby
13. Contextual menu
(right-click)
You can reprogram some of the F-keys shortcuts and hotkeys using the Logitech® Options
software available from logitech.com/options.
TIP: In the software settings, you can invert the FN mode if you prefer to access the enhanced
functions without having to press the FN key.
Tilt legs
Choose from three tilt positions based on your typing preference. Sturdy legs adjust from flat
to 4 or 8-degrees and hold firmly in place while you type.
Natural tilt 4° tilt 8° tilt
LED indicators
LED lights remind you when the battery needs to be changed or Caps Lock is engaged.
You can also check your keyboard battery status at any time by pressing the Battery Check
key below the LED light. When the battery level is good, the LED will glow green. When it is
critical, the LED will glow red.

MK540 ADVANCED FAQs 6
SPECIFICATIONS
Product Information
Component
Model Number (M/N)
Location
Keyboard
M-R0050
Underside of product
Mouse
Y-R0012
Underside of product
Receiver
C-U0007
Underside of product
Product Dimensions
Component
Height
Width
Depth
Weight
Keyboard
24.0 mm (0.94
inch)
193.5 mm
(7.61 inches)
457.3 mm
(18.0 inches)
805.0 g
(28.39 ounces)
Mouse
97.7 mm (3.84
inches)
61.5 mm (2.42
inches)
35.2 mm
(1.32 inches)
97.0 g
(3.42 ounces)
Related Products
Mouse
M310
Keyboard
K540
General Product Specifications
Wireless Protocol
Logitech Unifying protocol (2.4GHz)
Wired Network
Support
N/A

MK540 ADVANCED FAQs 7
General Product Specifications
Software Support
(at release)
Logitech Options for Windows
Windows 7
Windows 8
Windows 10 and above
Apps Available
(at release)
Logitech Options 2.1
System
Requirements
USB port
Supported Hardware
(at release)
Logitech Unifying receiver
Required Accessory
N/A
Power Type
Replaceable batteries (2x AA)
Keyboard Specifications
Connection Type
Logitech Unifying protocol (2.4GHz)
USB VID_PID
N/A
USB Protocol
N/A
USB Speed
N/A
Indicator Lights (LED)
Power/battery level indicator + CapsLock indicator
LCD Display
No
USB Ports (Built-in)
No
Backlighting
No
Special Keys
No

MK540 ADVANCED FAQs 8
Keyboard Specifications
Connect / Power
On/Off switch
Battery Details
2 x AA
Battery Life (not rechargeable)
N/A
Battery Life (rechargeable)
36 months for KB
Cable Length
N/A
Cable Length
(Power/Charging)
N/A
Other Features
N/A
Mouse Specifications
Connection Type
2.4GHz wireless connection
USB VID_PID
N/A
USB Protocol
N/A
USB Speed
N/A
Indicators Light LED
N/A
LCD Display
No
USB Ports (Built-in)
No
Backlighting
No
Special Keys
No
Connect / Power
Yes, on/off switch
Battery Details
1 x AA
Battery Life (not rechargeable)
N/A
Battery Life (rechargeable)
24 months for M

MK540 ADVANCED FAQs 9
Mouse Specifications
Cable Length
N/A
Cable Length (Power/Charging)
N/A
Other Features
N/A
DPI (Min/Max)
1000±
Sensor
Capella
Sensor Technology
Logitech Advanced Optical Tracking
Scroll Wheel
Yes, Ratchet Wheel
Onboard Memory
N/A
Standard and Special Buttons
Middle click

MK540 ADVANCED FAQs 10
FAQs
●My NumPad/KeyPad is not working, what should I do?
○Make sure that the NumLock key is enabled. If pressing the key once doesn’t
enable NumLock, press and hold the key for five seconds.
○Verify that the correct keyboard layout is selected in Windows Settings and
that the layout matches your keyboard.
○Try enabling and disabling other toggle keys such as Caps Lock, Scroll Lock,
and Insert while checking if the number keys work on different apps or
programs.
○Disable Turn on Mouse Keys:
1. Open the Ease of Access Center — click the Start key, then click Control
Panel > Ease of Access and then Ease of Access Center.
2. Click Make the mouse easier to use.
3. Under Control the mouse with the keyboard, uncheck Turn on Mouse
Keys.
○Disable Sticky Keys, Toggle Keys & Filter Keys:
1. Open the Ease of Access Center — click the Start key, then click Control
Panel > Ease of Access and then Ease of Access Center.
2. Click Make the keyboard easier to use.
3. Under Make it easier to type, make sure all checkboxes are unchecked.
○Verify the product or receiver is connected directly to the computer and not to
a hub, extender, switch, or something similar.
○Make sure the keyboard drivers are updated.
○Try using the device with a new or different user profile.
○Test mouse/keyboard or receiver on a different computer.

MK540 ADVANCED FAQs 11
●Operating distance between the mouse or keyboard and USB receiver
In an ideal environment, a Unifying or non-Unifying device can operate up to 30 feet (10
meters) away from its receiver (shown below) in a clear line of sight.
If you're not getting this distance, try these suggestions:
●Replace the battery/batteries or make sure your mouse or keyboard is fully charged
●Move devices that emit radio waves or could cause radio interference away from your
work area (Examples: cell phones, radios, wireless routers, microwaves)
To determine if your environment is shortening your operating range, try using your device in
a different environment to see if the distance improves. If it does, look for other possible
sources of interference you can remove from your work area.
●Backup device settings to the cloud in Logitech Options+
○Introduction
○How it works
○What settings get backed up
Introduction
This feature on Logi Options+ allows you to backup the customization of your Options+
supported device automatically to the cloud after creating an account. If you are planning to
use your device on a new computer or wish to go back to your old settings on the same
computer, log into your Options+ account on that computer and fetch the settings you want
from a backup to set up your device and get going.

MK540 ADVANCED FAQs 12
How it works
When you are logged into Logi Options+ with a verified account, your device settings are
automatically backed up to the cloud by default. You can manage the settings and the
backups from the Backups tab under More settings of your device (as shown):
Manage settings and backups by clicking on More > Backups:
●AUTOMATIC BACKUP OF SETTINGS — if the Automatically create backups of settings
for all devices checkbox is enabled, any settings you have or modify for all of your
devices on that computer are backed up to the cloud automatically. The checkbox is
enabled by default. You can disable it if you don’t want the settings of your devices to
be backed up automatically.
●CREATE A BACKUP NOW — this button allows you to backup your current device
settings now, if you need to fetch them later.
●RESTORE SETTINGS FROM BACKUP — this button lets you view and restore all the
available backups you have for that device that are compatible with that computer,
as shown above.
The settings for a device are backed up for every computer that you have your device
connected to and have Logi Options+ that you are logged into. Every time you make some
modifications to your device settings, they get backed up with that computer name. The
backups can be differentiated based on the following:
●Name of the computer. (Ex. John’s Work Laptop).
●Make and/or model of the computer. (Ex. Dell Inc., Macbook Pro (13-inch) and so on).
●The time when the backup was made.
The desired settings can then be selected and restored accordingly.
WHAT SETTINGS GET BACKED UP:
●Configuration of all the buttons of your mouse.
●Configuration of all the keys of your keyboard.
●Point & Scroll settings of your mouse.
●Any application-specific settings of your device.

MK540 ADVANCED FAQs 13
WHAT SETTINGS ARE NOT BACKED UP
●Flow settings.
●Options+ app settings.
●MK540 wireless keyboard and mouse frequently lose connection
If you frequently have to reconnect your keyboard or your mouse, try the following:
●Keep other electrical devices at least 8 inches (20 cm) away from the Unifying
receiver.
●Move the mouse or keyboard closer to the Unifying receiver.
●Move the Unifying receiver to a different location.
Additional information
●The connection between the mouse, keyboard and the Unifying receiver can be lost
due to several reasons such as:
●Low batteries
●Moving the Unifying receiver from one USB port to another
●Moving the receiver to another computer
●Plugging the receiver into a USB hub or other unsupported device such as a KVM
switch (your USB receiver must be plugged directly into your computer).
●Using your wireless mouse/keyboard on metal surfaces
●Radio frequency (RF) interference of more powerful wireless devices such as:
○Wireless speakers
○Computer power supplies
○Monitors
○Cell phones
○Garage door openers
●Connect device to a Unifying receiver
Your Unifying USB receiver can be paired with up to six Unifying devices at a time. You can
determine if your Logitech devices are Unifying by this logo:

MK540 ADVANCED FAQs 14
You can connect devices to your Unifying receiver using Logitech Options software. If you
don't already have Logitech Options installed, you can download it from
logitech.com/options.
To connect your device:
●Launch the Logitech Options software:
Start > Programs > Logitech > Logitech Options
●At the bottom right corner of the Welcome window, click ADD DEVICES.
●In the "Add a device" window, click ADD UNIFYING DEVICE.
●Follow the on-screen instructions to turn your device off and then back on.
●MK540 wireless keyboard battery life and replacement
Battery requirements:
●Requires 2 AA alkaline batteries.
●Expected battery life is up to 36 months.
Extending battery life
Although your MK540 keyboard and mouse have a standby mode to conserve power when
not in use, there are other ways you can help extend the battery duration of your devices:
●Avoid using your mouse on dark or transparent surfaces such as glass. These surfaces
cause the optical sensor to use more power.
●Use only alkaline batteries. Non-alkaline batteries, such as NiMH or NiCd, operate at a
lower voltage and may negatively impact your battery life.
Installing new batteries
Install the batteries for your keyboard by making sure the batteries face the correct direction
as shown in the image below.

MK540 ADVANCED FAQs 15
Battery replacement tips
For best battery performance, always use quality alkaline batteries.
When replacing batteries, make sure the replacement batteries are new and are within the
manufacturer's expiration date.
Do not mix old and new batteries.
Do not mix batteries of different brands.
●MK540 mouse battery life and replacement
Battery requirements:
●Requires 1 AA alkaline battery.
●Expected battery life is up to 24 months.
Extending battery life
Although your keyboard and mouse have a standby mode to conserve power when not in
use, there are other ways you can help extend the battery duration of your devices.
●Avoid using your mouse on dark or transparent surfaces such as glass. These surfaces
cause the optical sensor to use more power.
●Use only alkaline batteries. Non-alkaline batteries, such as NiMH or NiCd, operate at a
lower voltage and may negatively impact your battery life.
Installing a new battery
Install the battery for your mouse, making sure the battery faces the correct direction as
shown:

MK540 ADVANCED FAQs 16
Battery replacement tips
●For best battery performance, always use quality alkaline batteries
●When replacing batteries, make sure the replacement batteries are new and are
within the manufacturer's expiration date
●Do not mix old and new batteries
●Do not mix batteries of different brands
●Customize the MK540 keyboard or mouse with Logitech Options
You can customize your keyboard or mouse using Logitech Options software. If you don't
already have Logitech Options installed, you can download it from: logitech.com/options.
Launch the Logitech Options software:
1. Start > Programs > Logitech > Logitech Options
2. In the main Logitech Options window, click the device you want to customize.
3. Click the framed key or circled mouse button you want to customize.
NOTE: If a key or button is not framed or circled, it isn't programmable.
4. Choose the function you want to assign to the selected key or button from the
drop-down list. The new function assignment is highlighted in green.

MK540 ADVANCED FAQs 17
WARRANTY - MK540 ADVANCED Wireless Keyboard and
Mouse Combo
1 year limited hardware warranty
See Terms of Use here: logitech.com/en-my/tos/terms.html?id=3101
At Logitech, it is our goal to ensure you are completely satisfied with your Logitech purchase.
We take pride in the products and services we offer, and want our customers to enjoy them
just as much as we do. If you are experiencing an issue, please click on the following link to
learn more about the Logitech warranty.
Check our Logitech Warranty here:
support.logi.com/hc/en-us/articles/360023361413-Warranty-FAQ-AMR-AP
CONTACT US
Would you like to speak with us? We're here to help.
Get 24/7 live support with chat here: logitech.com/support
Phone: (Local) [phone]
(Toll Free) [phone]
Monday - Friday:
9:00 a.m. - 9:00 p.m. Eastern Time
DOWNLOAD
logitech.com/options