Original Logitech G402 Wired Gaming Mouse Gamer RGB Usb For Laptop Computer Ergonmic PC Gamer Mechanical Side Button Key Features 240-4000 dpi Resolution Sophisticated sensor technology for ultra-fast gaming 8 programmable buttons 4 settings for better control of how you game; Switch through four DPI settings in an instant 32-BIR Arm Processor on board 1 milisecond report rate High speed clicking with extreme responsiveness Full-speed USB