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White full-size wireless keyboard with numeric pad and matching mouse, USB receiver shown

DELL

DELL KM5221W Wireless Keyboard and Mouse Set White 12 Programmable Keys 36 Month Battery 2.4 GHz

SKU CH-A3VT-J57SA

A white wireless keyboard and mouse set with 12 programmable keys, 36-month battery life and adjustable DPI up to 4000

  • TypeWireless
  • 12 programmable keys plus scroll wheel click give instant access to apps and folders
  • 36 month battery life keeps the combo running without frequent battery changes
  • 4 GHz wireless connection provides reliable cable-free use across multiple monitors
  • Dell Peripheral Manager lets you set DPI at 1000, 1600, 2400 or 4000 for precise cursor control
  • Spill resistant keys and quiet plunger switches protect the keyboard and reduce typing noise

Product purpose

The Dell KM5221W is a wireless keyboard and mouse set finished in white. It connects through a USB receiver operating at 2.4 GHz and includes 12 programmable keys on the keyboard plus a programmable scroll wheel click on the mouse. The set is designed for office and home users who want a tidy desk without cables.

Who it suits

Workers who value long battery life will appreciate the rated 36 month runtime on a single set of batteries. The plunger key mechanism runs quietly, making the keyboard suitable for shared spaces and conference calls. Spill resistant keys add durability for everyday mishaps. Users who need Bluetooth connectivity or a rechargeable internal battery should consider other options.

Sustained workload behaviour

The RF link maintains a stable connection across multiple monitors at varying resolutions throughout the workday. Dell Peripheral Manager software lets you adjust mouse DPI to 1000, 1600, 2400 or 4000 and remap the 12 function keys and scroll wheel click without re-pairing. Battery status and firmware updates are managed in the same utility, so performance stays consistent over months of continuous use.

Highlights

  • 12 programmable keys plus scroll wheel click give instant access to apps and folders
  • 36 month battery life keeps the combo running without frequent battery changes
  • 4 GHz wireless connection provides reliable cable-free use across multiple monitors
  • Dell Peripheral Manager lets you set DPI at 1000, 1600, 2400 or 4000 for precise cursor control
  • Spill resistant keys and quiet plunger switches protect the keyboard and reduce typing noise

Specifications

TypeWireless

Questions about this item

Does the KM5221W set need a free USB-A port for its 2.4 GHz receiver?

Yes, the included USB wireless receiver plugs into a standard USB-A port to connect both the keyboard and the mouse.

Can I keep using a wired keyboard on the same PC while the KM5221W is connected?

Yes, the wireless set works independently, so a wired keyboard remains active alongside it.

How can I confirm the KM5221W is paired and the battery is healthy after setup?

Open Dell Peripheral Manager to see connectivity status, battery level, and the active DPI preset of 1000, 1600, 2400, or 4000.

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