1. Dual supply synchronous starting cable.It can startup or shutdown two low supply synchronously to increase supply. 2. No cutting wires or soldering, no compromising the integrity or function of your pc. 3. This card can make two at the same time switch machine, the graphics card distribution to the two on behalf of the use of high- supply. 4. Suitable for your Bitcoin, Litecoin Mining machines. 5. Durable PCB, long life to use, provide much convenience to your daily life. Interface: ATX24P PIN 24 Pin Duel start line Size:(L)X(W)7x3cm/2.76inchx1.18inch(appr) Supporting system: Linux / xp / win7,8,10 The extension line card 6P interface (Max 16A supply capacity) Wiring : 1.Please plug the main supply 24PIN into the 24PIN female head, and plug the other end to the mainboard. 2.And then plug the detection port 4pin cord of secondary supply into the riser card. 3.Then it can be realized that the secondary supply and the main supply are on and off at the same time, lengthening the service life of supply and graphics card. Material:PCB colour:Green Package Contents: 2 x Add2PSU Multiple Supply Adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.