Microsoft Comfort Mouse 3000. Device interface: USB, Movement detection technology: Optical, Purpose: Office. Cable length: 2 m. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -40 - 60 °C, Operating relative humidity range: 5 - 80 %. Windows operating systems supported: Windows XP, Windows Vista, Windows 7, Mac operating systems supported: Mac OS X 10.4 Tiger, Mac OS X 10.6 Snow Leopard. Minimum hard disk space: 100 MB