Cougar 400M 4000 dpi, On-Board Memory, 8 programmable buttons, UIX system, Multi-color backlit, Omron Gaming Switches, Iron-Grey Edition Maximum dpi: 4000 dpi Hand Orientation: Both Hands Operating System Supported: Windows XP 32bit / 64bit Windows Vista 32bit / 64bit Windows 7 32bit / 64bit Windows 8 32bit / 64bit Windows 8.1 32bit / 64bit |