Wired Full-size USB Keyboard and Mouse Set Lenovo 4X31R64409 — 100% layout, 1.8 m cable, Black, Danish

The Lenovo Essential Wired Combo Keyboard & Mouse (model 4X31R64409) is a full-size USB keyboard and optical mouse set with a Danish layout and black finish. The wired connection with a 1.8 m cable provides a reliable, stable link to any USB-equipped computer. The keyboard features a 100% numeric keypad, quiet keys in a space‑saving 2.5‑zone layout, adjustable tilt legs and a spill‑resistant membrane. The included ambidextrous full‑size mouse has a 1600 DPI optical sensor for precise cursor control.

Advantages

The combo delivers dependable wired performance and a durable design that tolerates accidental spills thanks to the waterproof membrane. Quiet keys and a dedicated numeric keypad support extended typing tasks, while the ergonomic full‑size mouse offers day‑long comfort. The keyboard also includes a Microsoft Copilot key that launches Copilot in Windows or opens Windows Search when Copilot is unavailable.

Suitable for

• Office productivity and data entry
• Home computing and everyday use
• Schools and shared workstations
• Users who prefer a wired USB connection and Danish key layout

Key specifications

• Model: Lenovo 4X31R64409
• Interface: Wired USB (keyboard and mouse)
• Keyboard: Full‑size (100%) with numeric keypad, Danish layout
• Cable length: 1.8 m
• Mouse: Full‑size ambidextrous optical mouse, 1600 DPI
• Color: Black
• Set contents: 2 pc(s) — keyboard and mouse

How to use

Connect both keyboard and mouse to available USB ports on your computer. Position the keyboard with the adjustable tilt legs to your preferred angle. Use the numeric keypad for number entry and standard keys for typing; press the Copilot key to open Microsoft Copilot or Windows Search depending on system availability. The mouse works immediately once connected — move to point and click, and adjust pointer settings in the operating system if needed.

Recommendations

For reliable operation, connect directly to a host USB port rather than through an unpowered hub. Wipe the keyboard surface and mouse with a soft, slightly damp cloth; avoid strong solvents. Keep liquids away from open ports, and use the adjustable tilt legs for ergonomic typing height.