Gravicoin ATX Motherboard Power Switch - 2-pack For turning off/on power supply or supplies in your open air or crated mining rig without having to short the motherboard pins Generous 50cm / 20in length allows flexibility in custom mounting in your rig Plugs into existing motherboard "Power SW" header. Consult your motherboard manual to determine exactly which pins to place this switch into. Works with all standard ATX-style motherboards (ATX, MiniATX, MicroATX, etc.) Color may vary