Cherry M-T2000. Device interface: USB, Movement detection technology: Laser, Movement resolution: 1200 DPI. Cable length: 0.9 m. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 60 °C. Mouse weight: 0.3 kg. Compatible operating systems: Microsoft Windows XP, Vista (WHQL), Mouse dimensions (WxDxH): 98 x 56 x 35 mm