The HP X372 1050 W proprietary power supply works with 3810M 16SFP+, 3810M 24G, 3810M 48G and 3810M models. It measures 1.58" x 3.27" x 8.88". This hot-plug/redundant power supply has input voltage rating of 120 VAC as well as 230 VAC and output voltage. - Proprietary power supply aids for reliable operation. - Dimensions: 1.58" x 3.27" x 8.88". Compatible with 3810M 16SFP+, 3810M 24G, 3810M 48G, 3810M.Color: Silver. - Hot-plug/redundant, Input voltage: 120 VAC, 230 VAC, Output voltage: 54 VDC, Output power: 680 W, Voltage provided: 1050 W.Contains one power supply. - Weight: 1.94 lbs.