Apevia ASTRO450W Astro Series 450W Power Supply. 1 x 20/24pin Main Power/1 x 12V(P4)/3 x SATA/3 x Molex/1 x Floppy Connectors. Auto-Thermally Controlled 120mm Black Fan. 115/230V Switch. 5% Tolerance of 5V, 3.3V & 12V Output. Max. Output Current +3.3V(16A), +5V(16A), +12V(36A), -12V(0.3A), +5Vsb(2.5A). Short-Circuit/Over-Current/Over-Voltage/Over-Power/Under-Voltage/Over-Temperature Protections. For safety, do not overload, abuse or modify the power supply unit. Use of this unit for Bitcoin Mining is not suggested since it will shorten the life and cause failures of power supply. Use for mining purposes is not covered by warranty. NOTE: Ensure that the power cable is connected to the wall outlet + power supply and also the 24/20 pin connector is connected to the motherboard (the power supply will not turn on if only the power cable is connected to the wall outlet and power supply).