Measurements: 121*62*40 mm There are seven keys. Cable length: 1.50 meters 800-1200-1600-2400 dpi is the resolution. Maximum speed: 4000 frames per second 8G is the maximum acceleration. 30 ips is the maximum tracking speed. 250 Hz is the maximum polling rate. Maximum current consumption: 100 mA Backlit: 4 colors