Black E-3lue E-Blue Cobra II 1600DPI High Precision Gaming LED Mouse (Bigger scroll wheel) EMS151BK Mouse Grip Style: Red wave Maximum dpi: 1600 dpi Operating System Supported: Windows 98 / 2000 / ME / NT / XP / Win 7 / Vista / OSX 10.2 Parts: 2-years Labor: 2-years