Genuine Dell 280W Desktop Power Supply Unit Compatible Part Numbers MH596, MH595, RT490, NH429, P9550, U9087, X9072, NC912, JK930, Compatible Model Numbers: AA24100L, D280P-00, H280P-00, L280P-01, H280P-01, L280P-0, L220P-00, AA24120L, N220P-00, PS-5281-5DF-LF, H290E-00 **Guaranteed Dell Genuine** Part Number: NH429 Model: H280P-01 Compatible Product Line: Dimension, Optiplex **Ship within 24 hours except for holidays and weekends**