High-output 550W PC power supply unit, ATX standard, PCI Express compatible. - Model: GOURIKI-500A - Output: 500W - Maximum Output: 550W/60 seconds - AC Input: 95-120V/200-240V 10A 60/50Hz - DC Output: +3.3V 28A, +5V 20A, +12V1 12A, +12V2 12A, -12V 0.3A, +5VSB 2.5A - Cooling Fan: Yes - Connectors: PCI Express compatible - Size: ATX standard Removed from a PC that was operating until 10/29. The fan and interior have been cleaned with an air blower and are relatively clean. However, please understand that operation is not guaranteed in the buyer's environment, and purchase accordingly. Gouriki