Make sure this fits by entering your model number. Replacement Power Supply for Dell 350w Unit. Upgraded Wattage. For Inspiron 530, 531 Vostro 200, 400 Studio 540 Systems 100-127V or 200-240V Input Connectors - 1x 20+4-Pin ATX Power, 3x 4-Pin ATX Power, 3x 15-pin SATA, 1x 6-Pin PCI Power, 1x 4-Pin Floppy Power