Allied Telesis Redundant Power Supply Module for AT-RPS3104 chassis, 450 W, 100 - 240 V, 0 - 40 °C, -25 - 70 °C, 0 - 85%, 4.63 lbs (2.1 kg) Allied Telesis Redundant Power Supply Module for AT-RPS3104 chassis. Total power: 450 W, AC input voltage: 100 - 240 V. Weight: 4.63 lbs (2.1 kg). Dimensions (WxDxH): 3.54 x 9.06 x 2.44" (90 x 230 x 62 mm)