The Wired Desktop 400 combines a spill-resistant keyboard and optical mouse to deliver all the features you need - and more - with Microsoft quality and reliability. Enjoy plug-and-play setup, quiet-touch keys, and a comfortable ambidextrous mouse. Use your mouse with your left or right hand - ambidextrous design makes it comfortable either way. A high-resolution optical sensor delivers greater accuracy and control.

• Quiet Touch Keys - Quiet, responsive, thin-profile keys.
• Spill-Resistant Design - Integrated water channels drain liquid away.
• Plug-and-Play - No software needed. Just connect the keyboard and mouse to your PC and go!
• Windows Start Button - Simply press to launch your Start menu. If you have Windows Vista installed, search your PC or the Web right from there.
• Comfort for Either Hand: Microsoft Optical Technology - High performance tracking. Scroll wheel - Fast on-screen navigation.