Sensor: Optical, Pixart 3212+8801 DPI: 400-800-1600-3200-7200 (default) Buttons: 7 (programmable) Switch rating: 10 million clicks Backlight: RGB Polling rate: 1000 Hz Interface: USB 2.0 Cable length: 1.5 m Size: 124 x 66 x 43 mm OS support: Windows 7 or newer Feature High-profile design with optimum palm support Heavy-duty switches for main L/R buttons RGB backlit with breathing effect Advanced customization software 3 easy accessible thumb buttons for an extra command availability and fast actuation.