PixArt PMW 3370 Flawless Gaming Sensor w/ 8 DPI Presets DPI Settings: 400/800/1200/1600/3200/5000/12000/19000 Kailh GM 8.0 Switches: 80 million clicks (Primary Left/Right Buttons) USB Polling Rate: 1000Hz (1 ms) Flexible Lightweight Paracord Mouse Cable Zero Hardware Acceleration Flawless 1:1 Tracking 1 Year Limited Warranty with Free Technical Support by Nixeus (American Brand and Company)