Razer Viper 8KHz Mouse (RZ01-03580100-R3M1) - Form Factor: True-Ambidextrous, RGB Lighting: Razer Chroma RGB, Sensor: Optical, Max Speed IPS: 650, Programmable Buttons: 7+1, Size: Length: 126.73 mm / 4.99 in Width: 57.6 mm / 2.27 in Height: 37.81 mm / 1.49 in, Weight: 71 g / 2.5 oz (Excluding cable), Connectivity: Wired - Speed flex Cable