Genuine Dell power supply 80 PLUS certified, 480W non-redundant unit for PowerEdge R410, PowerEdge R415 and PowerEdge R510 servers P/N DPS-480CB A Connectors includes 24-pin power, 8-pin signal, slim line power connector for optical drive and connector for hard drive bays Input: 7.5 - 3.8 A at 100-240 VAC, 50/60 Hz  Output: 480 Watt max The power supply has automatic input voltage detection. Power is softswitched allowing power cycling via a switch on the front of the system enclosure or via software control (through server management functions) 80 PLUS Bronze 85% efficient at 50% load under 115V AC input line. The power system is compatible with industry standards, such as ACPI and Server 2000 1 year seller warranty