Genuine Dell 250watt Power Supply Unit PSU For Optiplex GX1, GX60, GX150, 160L, 170L, GX240, GX260, GX270, Includes Smal Connectors: P1 - 20pin ATX Motherboard Power P2 - 4pin Pentium 4 Motherboard Power P3 - 4pin Standard Molex P5 - 4pin Standard Molex P6 - 4pin Standard Molex P7 - 4pin Floppy P8 - 4pin Standard Molex P9 - 4pin Standard Molex COMPATIBLE WITH: Dimension: B110, 1100, 2200, 2300, 2350, 2400, 3000, 4300, 4400, 4500, 4550, 4600, 8200, 8250, 8300 Optiplex (Tower Form Factor): GX60, GX150, 160L, 170L, GX240, GX260, GX270 PowerEdge: 400SC, 600SC Precision WorkStation: 340, 350, 360