Dell 305 Watt Power Supply for Dell Dimension and OptiPlex Computers. Dell P/N 0YH542.
Dell part numbers: CN-0YH542, 0YH542, YH542, OYH542, MC406, 0MC406
Model number: CX305N-00, CX3O5N-00, NPS-305BBC
Compatible With: Dell Dimension 5000 5100 5150 E510 E520 E521 3100 E310Dell OptiPlex GX520 GX620 GX280 GX320
Power Output: 305W
Connectors: 1x 24-Pin Standard ATX Motherboard Power Connector 1x Floppy Disk Drive Power Connector 2x SATA Power Connectors 2x Molex Power Connectors 1x 4-Pin ATX CPU Power Connector