Microsoft Wired Desktop 400 for Business Quiet touch keys. Combines Sleek Design with Exceptional Value. 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, Quiet Touch keys, and a comfortable ambidextrous mouse.
Optical mouse and Windows Vista features.
Comfort for Either Hand