Memory: 160K Acceleration: 20 g~23 g Frame Speed: 6,666 fps Max. Resolution: 4,000 CPI Key Response: Less 0.2 ms Infrared-Wheel: Over 1 Million Scrolls Tracking Speed: 60~160 inches/sec(IPS) Image Processing: 2.41Mega pixels/sec Metal X' Glide Armor Boot: Over 300 Kms Infrared-Micro-Switch: Over 20 million clicks Report Rate: 125~500 Hz Type: Wireless Net Weight: 160 g Sensor: Optical Engine Connector: USB(2.0/ 3.0) System Requirements: Windows XP/ Vista/ 7/ 8 /8.1 / 10 or later