Blue Star 450W 20+4-pin ATX PSU w/SATA Blue Star 450W 20+4-pin ATX Power Supply General Features: 450-Watts total Complies with ATX 12V 2.0 version Quiet Fan Power Specifications: 115/230V +3.3V, 16A +5V, 20A +12V, 24A -12V, 0.5A +5Vsb, 2.5 A Power Connectors: One (1) 12-inch 20/24-pin ATX power connector One (1) 4 pin 12V power connector One (1) SATA power connector