MCL Souris USB Optique. Device interface: USB, Movement detection technology: Optical, Movement resolution: 800 DPI. Cable length: 1.4 m. Mouse dimensions (WxDxH): 112 x 55 x 33 mm. Package dimensions (WxDxH): 210 x 166 x 85 mm. Compatible operating systems: Win 98/2000/Me/XP/Vista Mac 8.5 +