Add a new level of comfort and control to your computing experience. *With the 3-Button Optical Mouse from Dell. *Ease-of-use and better reliability are assured. *Because there are no moving parts to wear out or collect dirt and dust. *Featuring 3 buttons, this mouse is ideal for Internet enthusiasts and gamers looking for programmability in mice buttons and fast, accurate response *Supports: Windows Vista/XP/2000 *The compact size of this wired, three-button Dell Optical Mouse makes it the perfect notebook accessory. *Optical technology delivers smooth, accurate performance on virtually any surface, and the wider scroll wheel lets you navigate through documents and web sites quickly and precisely.