Genuine Dell Precision T3500 and Alienware Aurora 525w Power Supply Compatible Parts: U597G, 0G05V, M821J, M822J, 6W6M1, X008G Compatible Models: NPS-525BB A, N525EF-00, H525EF-00, D525E001L, D525AF-00, DPS-525FB A, H525AF-00, HP-D5253A0, H525AF-00, D525A001L, H525EF-00, HP-D5252E0. Power Supply Features: 525W Max Output Input 100-240v 50-60 GHz Dell Part Numbers: U597G, 0G05V, M821J, M822J, 6W6M1, X008G Model Numbers: NPS-525BB A, N525EF-00, H525EF-00, D525E001L, D525AF-00, DPS-525FB A, H525AF-00, HP-D5253A0, H525AF-00, D525A001L, H525EF-00, HP-D5252E0 BUYER MAY RECEIVE ANY OF THE LISTED MODEL OR PART NUMBERS. PLEASE ENSURE YOUR SYSTEM IS COMPATIBLE WITH THIS POWER SUPPLY. DOES NOT INCLUDE HARNESS!!!!