[Driver Update] Perixx MX-2000IIB, Programmable Gaming Laser Mouse - Black - 8 Programmable Button - Weight Tuning Cartridge - Omron Micro Switches - Avago 5600DPI ADNS-9500 Laser Sensor - Ultra Polling 125-1000HZ
Compatible with Windows XP, Vista, 7, and 8. Please download the driver from Perixx support website: http://perixx.com/en/driver.html