Product information: Wired Desktop 400 for Business (5MH-00002)This desktop set 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, Windows Vista features, Microsoft Xbox 360 compatibility, Quiet Touch keys, and a comfortable ambidextrous mouse.
Quiet-touch Keys: Quiet, responsive, thin-profile keys
Spill-Resistant Design: Integrated water channels drain the liquid away
Windows Start Button: Simply press to launch your Start menu
Plug and Play: No software needed. Just connect the keyboard to your PC and go!
Comfort for Either Hand: Use your mouse with your left or right hand—ambidextrous design makes it comfortable either way
High Performance Optical Technology-no mouse ball. 800 dpi optical sensor delivers greater accuracy and control