Use this power supply to replace your original. Featuring a reduced depth, this power supply has universal compatibility to replace ATX power supply form factors. Work on: HP Bestec ATS-100, ATS-150, ATX-1953D, ATX-1956D, ATX-1956-B1, ATX-1956F, ATX-1951D, ATX-250-12Z, ATX-250-12E, ATX-300-12Z, ATX-300-12E, 5188-2625, DPS-300AB, HP-D3057F3R Form Factor: ATX Reduced Depth for Increased Compatibility AC Input: 110/220V / 47~63HZ Hi-Pot Tested Low Ripple & Noise Frequency: 60/50 Hz Rise time: Less than 70 ms Hold-up Time: 17 ms Minimum at Nominal Input Voltage Output Voltage: +5V,-5V,+12V1,+12V2,+3.3V,-12V,+5V-SB Dimensions: 5.86" x 3.3" Connectors: ATX Connector 24 (20+4) Pin x 1 P4-12V 4 Pin x 1 SATA 15 Pin x 3 LP4 4 Pin x 3 Floppy 4 Pin x 1 Replace your power supply easily! We take the hassle away!