Genuine Dell 525W 6W6M1 M821J Power Supply Unit PSU For Precision T3500 and Alien Aurora Systems Compatible Part Numbers: U597G, 0G05V, M821J, M822J, 6W6M1, X008G Compatible Model Numbers: NPS-525BB A, N525EF-00, H525AF-00, HP-D5253A0, H525AF-00, D525A001L, H525EF-00, HP-D5252E0 Genuine Dell 525W Power Supply Input 100-240v 50-60 GHz, Output: 525W Compatible Systems: Alienware Aurora, Precision: T3500 Compatible Part Numbers: U597G, 0G05V, M821J, M822J, 6W6M1, X008G Compatible Model Numbers: NPS-525BB A, N525EF-00, H525AF-00, HP-D5253A0, H525AF-00, D525A001L, H525EF-00, HP-D5252E0 Connectors: 1x 24-Pin ATX Power |1x 8-Pin CPU ATX Power | 1x 6-Pin P5 ATX Power | 5x SATA Connectors | 1x 4-Pin Molex Connectors | 1x Floppy Drive Power