This power supply unit has a 550W output and comes with multiple connection terminals and power cables. It's a Kuroutoshikou 550W power supply unit that was stored in a closet. Operation is unknown, and there is no warranty. Please consider it as junk. How about it for parts or other uses? I'm not sure if all the included cables are present. There is no manual. - Model: 550W - Output: 550W - Included Cables: Multiple power cables - Connection Terminals: Multiple connection terminals Thank you for viewing.