Dell Pro Premium Compact Mouse MS7421W and Troubleshooting Guide

Summary: The following article provides information about the Dell Pro Premium Compact Mouse MS7421W. You can reference each section to learn more about the features of the Dell Pro Premium Compact Mouse MS7421W and how to use it. ...

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
Check out other resources

Instructions

Table of Contents:

  1. What is in the Dell Pro Premium Compact Mouse MS7421W box
  2. Premier Rechargeable Wireless Mouse Features
  3. Setting up your Premier Rechargeable Wireless Mouse
  4. Troubleshooting
  5. Additional Information

MS7421W Wireless Mouse

(Figure.1 Work faster and smarter with the Dell Pro Premium Compact Mouse MS7421W)

"You can get uninterrupted productivity with a rechargeable mouse that offers up to six months battery life on a full charge. Connect up to three devices and recharge in two minutes for a full day’s work."

 

What is in the Dell Pro Premium Compact Mouse MS7421W box

 

What's in the box

(Figure.2 Dell Pro Premium Compact Mouse MS7421W Box Contents)

1 Premier Rechargeable Wireless Mouse 2 Documents
3 Dell Universal Dongle 4 USB Type-C Cable for Recharging

 

Premier Rechargeable Wireless Mouse Features

 

Top View

Top View

(Figure.3 Dell Pro Premium Compact Mouse MS7421W Top View)

Left View

Left View

(Figure.4 Dell Pro Premium Compact Mouse MS7421W Left View)

Product Features

Feature Callouts - Top View

(Figure.5 Dell Pro Premium Compact Mouse MS7421W Product Features)

1 Programmable Buttons 2 Connection Mode Button
3 Scroll Wheel (Programmable: Left Tilt, Click, Right Tilt) 4 Mode of Pairing: Bluetooth 5.0
  • White LED Blinking: The device is not connected
  • Solid White LED: Device is connected
5 LED Indicator
  • Breathing White LED: Battery is Charging
  • Pulsing Amber LED: Battery is Low, must recharge
    

 

Bottom View

Feature Callouts - Bottom View

(Figure.6 Bottom View)

6 Optical Sensor 7 Power Switch

 

Charging Connector

Feature Callouts - Charging

(Figure.7 Charging Connector View)

8 USB-C Charging Connection    

 

Setting up your Premier Rechargeable Wireless Mouse

 

Compatibility

Operating Systems:

  • Wireless 2.4 GHz Connectivity:

    • Windows 7, 8, 8.1, 10 and 11; Mac; Linux (Red Hat 8.0/Ubuntu 18.04); Chrome; and Android operating system

  • Wireless Bluetooth 5.0 Connectivity:

    • Windows 8.1, 10 and 11; Mac; Linux (Red Hat 8.0/Ubuntu 18.04); Chrome; and Android operating system

Using the Dell Peripheral Manager application:

  • Windows 10 or later

Connecting the Premier Rechargeable Wireless Mouse to Charge

The Dell Pro Premium Compact Mouse MS7421W uses a USB Type-C to USB Type-C cable to connect to your Desktop, Laptop, or Tablet and charge.

USB-C Charging Cable

(Figure.8 USB Type-C Cable)

Connecting the Premier Rechargeable Wireless Mouse to your Computer

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

  • Dell Peripheral Manager User's Guide
  • Dell Pro Premium Compact Mouse MS7421W Quick Start Guide
  • Dell Pro Premium Compact Mouse MS7421W User’s Guide

The guides are located on our support site:

Troubleshooting

 

Problems Possible Causes Possible Solutions
You are unable to use the wireless mouse. The white LED indicator at the top of the wireless mouse does not light up when the wireless mouse is turned on.
  1. Check the battery level. This mouse uses a rechargeable battery, ensure that the battery is fully charged.
  2. Turn the wireless mouse off, and then turn the mouse on again. Check if the battery status light is pulsing amber for five seconds then goes dim. Flashing amber, indicates that the battery power is low. If the battery is fully depleted, the battery status light does not turn on.
  3. Ensure that the Dell Universal Dongle is directly connected to your computer. Avoid using the port replicators, USB hubs, and so on.
  4. Change the USB port. Insert the Dell Universal Dongle into another USB port on your computer.
You are unable to pair the wireless mouse to the computer using Bluetooth. The Bluetooth icon on the computer does not light up when connecting the wireless mouse to the computer.
  1. Check the battery level. This wireless mouse uses a rechargeable battery. Ensure that the battery is fully charged.
  2. Turn the wireless mouse off, and then turn the mouse on again. Check if the battery-status light flashes amber, which indicates 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 11, Windows 10, Windows 8, Chrome, or Android.
  5. Ensure that the wireless mouse is set to Bluetooth Low Energy (BLE) mode in your computer. For more information, see the documentation that came with your computer.
  6. Turn the mouse off and then turn the mouse on and then turn on the BLE mode in your computer. For more information, see the documentation that came with your computer.
The mouse pointer does not move. The wireless mouse pointer is not responding.
  1. Check the battery level. This wireless mouse uses a rechargeable battery, ensure that the battery is fully charged.
  2. Turn the wireless mouse off, and then turn the mouse on. Check if the battery-status light flashes amber ten times, this indicates that the battery power is low. If the battery is fully depleted, the battery-status light does not turn on.
  3. Restart your computer.
The left or right buttons do not work. No response when the left or right mouse button is pressed.
  1. Check the battery level. This wireless mouse uses a rechargeable battery. Ensure that the battery is fully charged.
  2. Turn the wireless mouse off, and then turn the mouse on. Check if the battery-status light flashes amber ten times, this indicates that the battery power is low. If the battery is fully depleted, the battery-status light does not turn on.
  3. Restart your computer.
You are unable to pair the wireless mouse with the computer. A wireless pairing error message is received while pairing the wireless mouse with the computer.
  1. Check the battery level. This wireless mouse uses a rechargeable battery. Ensure that the battery is fully charged.
  2. Turn the wireless mouse off, and then turn the mouse back on. Check if the battery-status light flashes amber ten times, this indicates that the battery power is low. If the battery is fully depleted, the battery-status light does not turn on.
  3. Restart your computer.
The wireless connection is lost. The mouse that was previously paired does not work on the computer now.
  1. Ensure that the Dell Universal Dongle is connected directly to your computer. Avoid using port replicators, USB hubs, and so on.
  2. Change the USB port. Insert the Dell Universal Dongle into another USB port on your computer.

 

Additional Information

 

Dell Mouse Support Site

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

To get the Dell Pro Premium Compact Mouse MS7421W User Guide:

  1. Browse to: Dell Pro Premium Compact Mouse MS7421W Documentation Page
  2. It is located under the Manuals and Documents section.
  3. You can touch or click View PDF or View Page on the right side of the screen across from the Mouse User Guide listing.

Affected Products

Dell Pro Premium Compact Mouse MS7421W
Article Properties
Article Number: 000182231
Article Type: How To
Last Modified: 18 Jul 2025
Version:  5
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.