Genuine ATXPowerSupplies 277979-001 300 Watt Power Supply Replacement for Compaq PDP-123P, PDP-121P, PDP-121, PSP-121, 277910-001, 279086-001, 277919-001, 277978-001, HP-Q220PC3, 277918-001, 277978-001, 263919-001, 308615-001, 308437-001, 271398-001, HP dc5000 minitower, Delta DPS-250RB 1A, EVO D310 Minitower, Delta DPS-240EB, Presario 6025RSH, Liteon PS-6221-2C 277979-001 300 Watt Power Supply Replacement for Compaq PDP-123P, PDP-121P, PDP-121, PSP-121, 277910-001, 279086-001, 277919-001, 277978-001, HP-Q220PC3, 277918-001, 277978-001, 263919-001, 308615-001, 308437-001, 271398-001, HP dc5000 minitower, Delta DPS-250RB 1A, EVO D310 Minitower, Delta DPS-240EB, Presario 6025RSH, Liteon PS-6221-2C