Dell Pro Keyboard and Mouse KM5221W Usage and Troubleshooting Guide

Summary: Unlock the full potential of the Dell Pro Keyboard and Mouse KM5221W with our usage and troubleshooting guide. Learn setup, features, and solutions to common issues.

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Instructions

Table of Contents:

  1. What is in the Dell Pro Keyboard and Mouse KM5221W box
  2. Dell Pro Wireless Keyboard and Mouse Features
  3. Setting up your Dell Pro Wireless Keyboard and Mouse
  4. Troubleshooting
  5. Additional Information

 

Work faster and smarter with the Dell Pro Wireless Keyboard and Mouse KM5221W

Figure 1: Work faster and smarter with the Dell Pro Keyboard and Mouse KM5221W.

Combining a discreetly powerful keyboard with an expertly designed mouse, the Dell Pro Wireless Keyboard and Mouse combo enhances your productivity. Powered by one of the industry's leading battery lives of up to 36 months, this combo is built to last.

 

What is in the Dell Pro Keyboard and Mouse KM5221W box

 

Dell Pro Wireless Keyboard and Mouse KM5221W Box Contents

Figure 2: Dell Pro Keyboard and Mouse KM5221W Box Contents

1 Keyboard 2 Mouse with USB receiver
3 AAA-type Batteries (for keyboard) 4 AA-type Battery (for mouse)
5 Documents    

 


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Dell Pro Wireless Keyboard and Mouse Features

 

Top View

Dell Pro Wireless Keyboard and Mouse KM5221W Top View

Figure 3: Dell Pro Keyboard and Mouse KM5221W Top View

Product Features

Dell Pro Wireless Keyboard and Mouse KM5221W Product Features

Figure 4: Dell Pro Keyboard and Mouse KM5221W Product Features

1 Programmable keys 2 Dedicated keys
3 On and off switch 4 Caps lock.
5 Num lock 6 Battery life indicator
7 Scroll wheel (Programmable middle click button). 8 Battery indicator

 


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Setting up your Product Name

 

Compatibility

Wireless 2.4 GHz Connectivity:

  • Windows 7, 8, 8.1 and 10, Mac, Linux (Red Hat and Ubuntu), Chrome, and Android operating system

Dell Peripheral Manager application:

  • Windows 10 or later

Connecting the Dell Pro Wireless Keyboard and Mouse to your Computer

You can get step-by-step instructions in the following guides:

  • Dell Peripheral Manager User's Guide
  • Dell Pro Keyboard and Mouse KM5221W Quick Start Guide
  • Dell Pro Keyboard and Mouse KM5221W User’s Guide

The guides are located on our support site:


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Troubleshooting

 

Problems Possible solutions
The keyboard or mouse is not functioning.

  1. Check if the batteries are inserted in the correct orientation. The batteries "+" and "-" ends should be placed as indicated on the battery compartment.

  2. Check the battery level.

    • If the device uses the rechargeable batteries, ensure that the batteries are fully charged.
    • If the batteries are exhausted, replace them with new ones.

  3. Turn off the device, and then turn it on. Check if the battery-status light is flashing amber 10 times, indicating that the battery power is low. If the batteries are fully depleted, the battery-status light does not turn on.

  4. Restart your computer.

  5. Ensure that the USB receiver is directly connected to your computer

    • Avoid using the port replicators, USB hubs, and so on.
    • Change the USB port.
Unable to pair the keyboard or mouse with your computer

  1. Check the battery level.

    • If the device uses the rechargeable batteries, ensure that the batteries are fully charged.
    • If the batteries are exhausted, replace them with new ones.

  2. Turn off the device, and then turn it on. Check if the battery-status light is flashing amber 10 times, indicating that the battery power is low. If the batteries are fully depleted, the battery-status light does not turn on.

  3. Restart your computer.

  4. Ensure that the USB receiver is directly connected to your computer. Avoid using the port replicators, USB hubs, and so on.

  5. Change the USB port or insert the USB receiver into another USB port on your computer.

  6. Ensure that the distance between your computer and keyboard and mouse is within 10 meters.
The mouse pointer does not move
Mouse left or right button does not work
Keyboard buttons do not work
Wireless connection is lost.

  1. Check the battery level

    • If the device uses the rechargeable batteries, ensure that the batteries are fully charged.
    • If the batteries are exhausted, replace them with new ones.

  2. Turn off the device, and then turn it on. Check if the battery-status light is flashing amber 10 times, indicating that the battery power is low. If the batteries are fully depleted, the battery-status light does not turn on

  3. Restart your computer.

  4. Ensure that the distance between your computer and keyboard and mouse is within 10 meters
Troubleshooting a slow-moving cursor

  1. Ensure that the sensor is not obstructed or dirty.

  2. Glass or smooth glossy surfaces are not suitable for the mouse sensor to capture the mouse movement. Using a dark-colored fabric mouse pad can improve the tracking

  3. Change the mouse settings to adjust the pointer speed.

    Click or tap the tab that matches the operating system installed on your computer and perform the steps within that section to change the settings.

    • In the Search box, type main.cpl. The Mouse Properties dialog box appears.
    • Click or tap main.cpl in the list of programs.
    • Click or tap the Pointer Options tab. In the Motion section, move the slider to adjust the pointer speed to the wanted level.
    • Click or tap OK.
 


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Additional Information

 

Dell mouse troubleshooting

Dell keyboard troubleshooting

Dell Pro Keyboard and Mouse KM5221W Support Site

Learn how to use and troubleshoot problems with the Dell Pro Keyboard and Mouse KM5221W you use with your computer. You can find information about Troubleshooting steps, How-To guides, and relevant Support Videos for assistance.

For the Dell Pro Keyboard and Mouse KM5221W User Guide, browse to the Dell Pro Keyboard and Mouse KM5221W Online Manual Page. Select View PDF to the right of the Dell Pro Keyboard and Mouse KM5221W User Guide, located in the Manuals and Documents section.


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Affected Products

Dell Pro Keyboard and Mouse KM5221W
Article Properties
Article Number: 000182277
Article Type: How To
Last Modified: 09 Apr 2025
Version:  6
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