Dell Pro Wireless Keyboard and Mouse KM5221W User's Guide

Keyboard model: KB3121W

Mouse model: MS3121W

Regulatory model: KB3121Wt/MS3121Wt/SD-8160

Regulatory model: KB3121Wp/MS3121Wp/DGRFEO

Dell Pro Wireless

Keyboard and Mouse

KM5221W

User’s Guide

are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their

respective owners.

2021–01

Rev. A00

Notes, Cautions, and Warnings

NOTE: A NOTE indicates important information that helps you make better use

of your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if

instructions are not followed.

WARNING: A WARNING indicates a potential for property damage, personal

injury, or death.

│ 3

Contents

What’s in the box ...............................5

Features ......................................6

Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Mouse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Dell Peripheral Manager..........................8

Setting up your wireless keyboard..................9

Setting up your wireless mouse ................... 11

Pairing your wireless keyboard and mouse ..........14

Pairing with a USB receiver . . . . . . . . . . . . . . . . . . 14

Keyboard Specifications.........................16

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Physical characteristics . . . . . . . . . . . . . . . . . . . . 16

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . 17

Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Mouse Specifications...........................18

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Physical characteristics . . . . . . . . . . . . . . . . . . . . 18

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . 19

Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4 │

Troubleshooting ...............................20

Statutory Information ..........................23

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Limited warranty and return policies . . . . . . . . . . . . . . . . . . 23

For U.S. customers: . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

For European, Middle Eastern and African customers: . . . . . . . . 23

For non-U.S. customers: . . . . . . . . . . . . . . . . . . . . . . . . 23

What’s in the box │ 5

What’s in the box

1. Keyboard 2. Mouse with USB receiver

3. AAA-type Batteries (for keyboard) 4. AA-type Battery (for mouse)

5. Documents

6 │ Features

Features

Keyboard

Top view

Bottom view

3 34

1. Power switch 2. Battery-status light

3. Keyboard feet 4. Battery cover

NOTE: Open the battery cover to access the PPID/Regulatory label location.

Label location

Features │ 7

Mouse

Top view

Bottom view

1. Left button 2. Scroll wheel

3. Right button 4. Battery-status light

5. Optical sensor 6. Power switch

NOTE: Open the mouse cover to access the PPID/Regulatory label location.

Label location

8 │ Dell Peripheral Manager

Dell Peripheral Manager

Dell Peripheral Manager software enables you to perform the following:

• View device information such as firmware version and battery status through the Info

tab.

• Upgrade the latest firmware updates on your devices.

For more information, see Dell Peripheral Manager User’s Guide on the product page at

www.dell.com/support.

Setting up your wireless keyboard │ 9

Setting up your wireless

keyboard

1. Using your ngertip, pry open the battery cover.

2. Install the AAA batteries into the battery compartment. Then replace the battery

cover.

10 │ Setting up your wireless keyboard

3. Slide the power switch to the right to turn on the keyboard.

Setting up your wireless mouse │ 11

Setting up your wireless mouse

1. Locate the slot on the side of the mouse cover. Using your ngertip, pry open the

cover.

2. Remove the USB receiver from its compartment.

12 │ Setting up your wireless mouse

3. Install the AA battery into the battery compartment.

4. Replace the mouse cover.

Setting up your wireless mouse │ 13

5. Slide the power switch down to turn on the mouse.

14 │ Pairing your wireless keyboard and mouse

Pairing your wireless keyboard

and mouse

Your Dell wireless keyboard and mouse can be paired with devices using USB receiver.

You can pair and switch between a laptop, desktop, and a compatible mobile device.

Pairing with a USB receiver

NOTE: You can connect a device to your wireless keyboard and mouse using the

Dell Universal pairing.

1. Detach the receiver tag from the USB receiver.

2. Install the Dell Universal USB receiver to the USB port on your computer.

Laptop Desktop

Pairing your wireless keyboard and mouse │ 15

3. Slide the power switch to the right to turn on the keyboard. Then slide the power

switch down to turn on the mouse.

The keyboard and mouse are paired with your USB device.

16 │ Keyboard Specifications

Keyboard Specifications

General

Model number KB3121W

Connection type Wireless (2.4 GHz with nano receiver)

System requirement • Windows Server 2012; 2012 R2, 2016

(RF receiver only)

• Windows 8, 32/64-bit

• Windows 10, 32/64-bit

• Android

• Chrome

• MAC OS

• Linux 6.x, Ubuntu 18 and Redhat 8 Enterprise

• Free-DOS (RF receiver only)

Electrical

Operating voltage 2 V - 3.2 V

Battery type Two AAA batteries

Physical characteristics

Weight (with batteries) 440 g (0.97 lb)

Dimensions:

Length 432.71 mm (17.04 in.)

Width 122.11 mm (4.81 in.)

Height 26.11 mm (1.03 in.)

Keyboard Specifications │ 17

Environmental

Temperature:

Operating

-10°C to 50°C (14°F to 122°F)

Storage

-40°C to 65°C (-40°F to 149°F)

Storage humidity

95% maximum relative humidity;

non-condensing

Wireless

RF resolution

2.4 GHz RF

Operating channel

5 channels for GFSK modulation with 1 Mbps

Operation distance

> 10 m (outdoor without any interference)

18 │ Mouse Specifications

Mouse Specifications

General

Model number MS3121W

Connection type Wireless (2.4 GHz with nano receiver)

System requirement • Windows Server 2012; 2012 R2, 2016

(RF receiver only)

• Windows 8, 32/64-bit

• Windows 10, 32/64-bit

• Android

• Chrome

• Linux 6.x, Ubuntu

• Free-DOS (RF receiver only)

Electrical

Operating voltage 1 V - 1.5 V

Battery type One AA battery

Physical characteristics

Weight (without battery) 68.51 g (0.15 lb)

Dimensions:

Length 115.51 mm (4.55 in.)

Width 61.96 mm (2.44 in.)

Height 38.14 mm (1.50 in.)

Mouse Specifications │ 19

Environmental

Temperature:

Operating

-10°C to 50°C (14°F to 122°F)

Storage

-40°C to 65°C (-40°F to 149°F)

Storage humidity

95% maximum relative humidity;

non-condensing

Wireless

RF resolution

2.4 GHz RF

Operating channel

5 channels for GFSK modulation with 1 Mbps

Operation distance

> 10 m (outdoor without any interference)

20 │ Troubleshooting

Troubleshooting

Problems Possible solutions

Keyboard/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

a 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

will 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.

Troubleshooting │ 21

Problems Possible solutions

Unable to pair the keyboard/

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

a 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

will 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/mouse is within 10 meters.

Mouse pointer does not

move

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

a 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

will not turn on.

3. Restart your computer.

4. Ensure that the distance between your computer

and keyboard/mouse is within 10 meters.

Mouse left/right button does

not work

Keyboard buttons do not

work

Wireless connection is lost

22 │ Troubleshooting

Problems Possible solutions

Troubleshooting a slow

moving cursor

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

2. Glass or very 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 (OS) installed on your laptop/desktop 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 desired level.

• Click or tap OK.

Statutory Information │ 23

Statutory Information

Warranty

Limited warranty and return policies

Dell-branded products carry a three-year limited hardware warranty. If purchased

together with Dell system, it will follow the system warranty.

For U.S. customers:

This purchase and your use of this product are subject to Dell’s end user agreement,

which you can find at Dell.com/terms. This document contains a binding arbitration

clause.

For European, Middle Eastern and African customers:

Dell-branded products that are sold and used are subject to applicable national consumer

legal rights, the terms of any retailer sale agreement that you have entered into (which

will apply between you and the retailer) and Dell’s end user contract terms.

Dell may also provide an additional hardware warranty – full details of the Dell end user

contract and warranty terms can be found by going to Dell.com/terms, selecting your

country from the list at the bottom of the “home” page and then clicking the “terms and

conditions” link for the end user terms or the “support” link for the warranty terms.

For non-U.S. customers:

Dell-branded products that are sold and used are subject to applicable national consumer

legal rights, the terms of any retailer sale agreement that you have entered into (which

will apply between you and the retailer) and Dell’s warranty terms. Dell may also provide

an additional hardware warranty – full details of Dell’s warranty terms can be found by

going to Dell.com, selecting your country from the list at the bottom of the “home” page

and then clicking the “terms and conditions” link or the “support” link for the warranty

terms.