Support USB and PS2 interface 5V power supply Compatible Microsoft 3D IntelliMouse and IBM mouse. Support Microsoft OS, including Vista, XP, 2000, ME, 7,10 and so on Accord with Microsoft WHQL and USB-IF Support R/M/L key, Support mechanical Z shaft encoder CPI: 1200/800, or dynamic transfer 400-600-800-1200-1400-1600 Sleep mode and Automatic wake-up function Built-in power management Built-in LED drive High integration, very few peripheral components Built-in oscillator Meet ROHS DIP12 package