ITEM NAME:3 Power Supply Starter Board 4Pin Ide 24Pin Extender Card For Btc Miner T3Y4 3 Power Supply Starter Board 4Pin Ide 24Pin Extender Card For Btc Miner T3Y4 To realize dual power supply or multiple power supply to work or off at the same time. 4 pin for main power supply and 36pin for vice power supply. Make full use of power efficiency. Manual control of secondary power supply. Material: PC+ Metal Color: green + white Board Size: 108x51x15mm/42.52x2.01x0.59in (Approx.) 4-Pin IDE Power Cable length: 20cm Switch Extender Cable length: 60cm Interface: 4pin; 24pin Quantity: 1 Set (other accessories demo in the picture is not included) Package Contents: 1 X Three Power Supply Synchronous Starter Board (No retail package) 1 X 4-Pin IDE Power Cable 1 X Switch Extender Cable