Lenovo 4X31R64400 keyboard Mouse included Universal USB US English Black

The Lenovo 4X31R64400 is a full-size wired keyboard and mouse combo designed for everyday work. The set connects via USB and includes a full numeric keypad in a space-saving layout, a durable waterproof membrane to protect against accidental spills, and a wired mouse with a 1600 DPI optical sensor for precise control. The keyboard features quiet keys and a dedicated Microsoft Copilot key to streamline common tasks, while the ergonomic mouse provides comfort for extended use.

Advantages

This wired combo offers reliable USB connectivity and a robust build that resists spills thanks to the waterproof membrane. The full-size layout with numeric keypad supports data entry, and quiet keys reduce typing noise. The included mouse delivers up to 1600 DPI tracking for smooth cursor movement, and the Microsoft Copilot key enables faster access to system features. The 1.8 m cable length provides flexible desk placement.

Suitable for

• Office and home productivity tasks
• Data entry and spreadsheet work
• General internet browsing and email
• Users who prefer a full-size keyboard with a numeric keypad

Key specifications

• Brand: Lenovo
• Model / MPN: 4X31R64400
• Connection: USB wired
• Keyboard size: Full-size (100%) with numeric keypad
• Mouse sensor: Optical, 1600 DPI
• Color: Black
• Cable length: 1.8 m
• Included items: Keyboard and mouse (2 pcs)
• Layout: US English

How to use

Connect the keyboard and mouse to available USB ports on your computer. No additional drivers are typically required for basic functionality on Windows systems. Position the keyboard and mouse for comfortable typing and cursor use; adjust hand placement and desk setup to reduce strain. Use the numeric keypad for number entry and the Microsoft Copilot key to access supported system functions.

Recommendations

To maintain performance, keep liquids away where possible despite the waterproof membrane; clean the keyboard and mouse with a soft, dry cloth and disconnect before cleaning. For best tracking accuracy, use the mouse on a flat, non-reflective surface.