Soyntec Inpput R480. Device interface: USB, Movement detection technology: Optical, Movement resolution: 1000 DPI. Cable length: 1.35 m. Mouse dimensions (WxDxH): 100 x 58 x 35 mm, Mouse weight: 77 g. Compatible operating systems: Windows 98SE/2000/ME/XP/VISTA/Mac OSX/Linux, Packaging height: 140 mm, Packaging length: 225 mm