Dell Pro Plus Compact Keyboard and Mouse KM7120W Usage and Troubleshooting Guide

Summary: The following article provides information about the Dell Pro Plus Compact Keyboard and Mouse KM7120W. You can reference each section to learn more about the features of the Dell Pro Plus Compact Keyboard and Mouse KM7120W and how to use them. ...

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Instructions

Table of Contents:

  1. What is in the Dell Pro Plus Compact Keyboard and Mouse KM7120W box?
  2. Multi-Device Wireless Keyboard and Mouse Features
  3. Setting up your Multi-Device Wireless Keyboard and Mouse
  4. Troubleshooting
  5. Additional Information

Product Shot

(Figure.1 Work faster and smarter with the Dell Pro Plus Compact Keyboard and Mouse KM7120W)

"Seamlessly switch between three devices at any time with a click of the button and enhance your productivity with its 36-month battery life."

 

What is in the Dell Pro Plus Compact Keyboard and Mouse KM7120W box

 

What's in the box?

(Figure.2 Dell Pro Plus Compact Keyboard and Mouse KM7120W Box Contents)

1 Wireless Keyboard 2 Wireless Mouse
3 Documents 4 USB Receiver
5 Batteries
(AA x3)		    

 


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Multi-Device Wireless Keyboard and Mouse Features

 

Top View

KM7120W Top View

(Figure.3 Dell Pro Plus Compact Keyboard and Mouse KM7120W Top View)

Right-Hand Side View

KM7120W Right Hand Side View

(Figure.4 Dell Pro Plus Compact Keyboard KM7120W Right Side View)

Product Features

LM7120W Keyboard and Mouse Product Features

(Figure.5 Dell Pro Plus Compact Keyboard and Mouse KM7120W Product Features)

1 RF 2.4 GHz Mode Indicator 2 Bluetooth 5.0 Mode Indicator
3 Toggle Button 4 Scroll Wheel (With Tilt)
5 Programmable Buttons 6 Programmable Keys (F1-F12)
7 Battery Status Indicator    

 

Multi-Device Features

Connect up to three devices with this keyboard and mouse combo. The dual-mode RF 2.4 GHz and Bluetooth 5.0 connectivity lets you effortlessly switch across devices. Using either the connection-mode key or the button on your keyboard and mouse.

KM7120W LEDs

(Figure.6 Dell Pro Plus Compact Keyboard KM7120W Indicators)


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Setting up your Dell Pro Plus Compact Keyboard and Mouse KM7120W

 

Compatibility

Operating Systems:

  • Wireless 2.4 GHz Connectivity:

    • Windows 7, 8, 8.1 and 10; Mac; Linux (Red Hat 8.0/Ubuntu 18.04); Chrome; and Android OS

  • Wireless Bluetooth 5.0 Connectivity:

    • Windows 8.1 and 10; Mac; Linux (Red Hat 8.0/Ubuntu 18.04); Chrome; and Android OS

Using the Dell Peripheral Manager application:

  • Windows 10 or later

Connecting the Multi-Device Wireless Keyboard and Mouse USB Receiver

The Dell Pro Plus Compact Keyboard and Mouse KM7120W uses a USB Type-A receiver dongle to connect to your Desktop or Laptop computer. The receiver is located inside the battery compartment of the mouse.

USB Type-A Receiver Dongle

(Figure.7 USB Type-A Dongle)

Note: You can purchase a USB Type-C to Type-A adapter separately, if your computer does not support USB Type-A connectors.

 

Connecting the Multi-Device Wireless Keyboard and Mouse to your Computer

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

  • Dell Peripheral Manager User's Guide
  • Dell Pro Plus Compact Keyboard and Mouse KM7120W Quick Start Guide
  • Dell Pro Plus Compact Keyboard and Mouse KM7120WUser’s Guide

The guides are available on our support site:


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Troubleshooting

 

Problems Possible Cause Possible Solutions
Unable to use the wireless mouse/wireless keyboard. The White LED indicator on top of the mouse/keyboard does not light up when the mouse/keyboard is turned on.
  1. Check if the battery is inserted correctly. Battery + and - ends should follow those indicated on the battery compartment label.
  2. Check the battery level.
    • If the wireless mouse uses a rechargeable battery, ensure that the battery is fully charged.
    • If the battery is exhausted, replace it with a new one.
  3. Turn the wireless mouse/wireless keyboard off, and then turn it on again. Check if the battery-status light is flashing amber, indicating that the battery power is low. If the battery is fully depleted, the battery-status light does not turn on.
  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. Insert the USB receiver into another USB port on your computer.
  6. Update the Bluetooth driver on your computer:
    1. Open the web browser and download the latest Bluetooth drivers from https://www.dell.com/support.
    2. Restart your computer.
Unable to pair the wireless mouse/wireless keyboard to the computer using Bluetooth. The Bluetooth icon on the computer does not light up when connecting the mouse/keyboard to the computer.
  1. Check the battery level:
    • If the wireless mouse/wireless keyboard uses a rechargeable battery, ensure that the battery is fully charged.
    • If the battery is exhausted, replace it with a new one.
  2. Turn the wireless mouse/wireless keyboard off, and then turn it on again. Check if the battery-status light is flashing amber, indicating that the battery power is low. If the battery is fully depleted, the battery status light does not turn on.
  3. Restart your computer.
  4. Check that the operating system is Windows 10/Windows 8/Chrome/Android.
  5. Ensure that the wireless mouse/wireless keyboard is set to Bluetooth Low Energy (BLE) mode in your computer. For more information, see the documentation that came with your computer.
The mouse pointer does not move. The mouse pointer is not responding.
  1. Check the battery level:
    • If the wireless mouse/wireless keyboard uses a rechargeable battery, ensure that the battery is fully charged.
    • If the battery is exhausted, replace it with a new one.
  2. Turn the wireless mouse/wireless keyboard off, and then turn it on again. Check if the battery-status light is flashing amber, indicating that the battery power is low. If the battery is fully depleted, the battery status light does not turn on.
  3. Restart your computer.
Left/right buttons do not work. No response when the left of right mouse button is pressed.
  1. Check the battery level:
    • If the wireless mouse/wireless keyboard uses a rechargeable battery, ensure that the battery is fully charged.
    • If the battery is exhausted, replace it with a new one.
  2. Turn the wireless mouse/wireless keyboard off, and then turn it on again. Check if the battery-status light is flashing amber, indicating that the battery power is low. If the battery is fully depleted, the battery status light does not turn on.
  3. Restart your computer.
Unable to pair the wireless mouse/keyboard with the computer. Wireless pairing error message is received while pairing the mouse/keyboard with the computer.
  1. Check the battery level:
    • If the wireless mouse/wireless keyboard uses a rechargeable battery, ensure that the battery is fully charged.
    • If the battery is exhausted, replace it with a new one.
  2. Turn the wireless mouse/wireless keyboard off, and then turn it on again. Check if the battery-status light is flashing amber, indicating that the battery power is low. If the battery is fully depleted, the battery status light does not turn on.
  3. Restart your computer.
Wireless connection is lost. The previously paired mouse/keyboard no longer works on the computer.
  1. Ensure that the USB receiver is connected directly to your computer. Avoid using the port replicators, USB hubs, and so on.
  2. Change the USB port. Insert the USB receiver into another USB port on your computer.

 


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Additional Information

 

 

Dell Keyboard and Mouse Support Site

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

For the Dell KM7120W Multi-Device Wireless Keyboard and Mouse User Guide, browse to the following page: Dell KM7120W Multi-Device Wireless Keyboard and Mouse Online Manual Page (Touch or click View PDF to the right of the User Guide, in the Manuals and Documents section.)


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Affected Products

Dell Pro Plus Compact Keyboard and Mouse KM7120W
Article Properties
Article Number: 000206143
Article Type: How To
Last Modified: 15 Apr 2025
Version:  2
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