Dell 305W Power Supply PSU For Dimension 5000, 5150, E510, E520, E521, Optiple GX280 Tower Systems, Compatible Dell Part Numbers: YH542, W8185, CX30, C5201, D5032, Compatible Model Number: N305P-00 305 W Max Output 100-127V or 200-240V Input Dimensions: 6 W x 4 H x 5.5 D - Inches Similar Dell Part Numbers: C5201, D5032, Example Model Numbers: N305P-00 Connectors: P1 - 24-pin ATX Motherboard Power, P2 - 4-pin P4 motherboard power, P3 - 4-pin SATA standard power connector, P5 - 4-pin SATA standard power connector, P7 - 4-pin floppy connector, P8 - 4-pin Molex Power Connector, P9 - 4-pin Molex Power Connector