Because of the high-power power is more expensive, now use this Card can use two power small power switch machine at the same time, thus increasing the power supply. In the 5pcs graphics cards are used at the same time brush Coin, the power supply on the power is not enough, high-power power supply is always out of stock and the price is also very expensive, where the adapter card comes in hand, through this card can make two power at the same time Switch machine, the graphics card power distribution to the two power on behalf of the use of high-power power supply. Precautions: Plug must be clear when the direction, do not plug or insert offset, to prevent burn equipment, plug the first device when the socket and then plug , to avoid excessive force plug the pin cut. Wiring: The main power supply 24PIN plug into the 24PIN female head on the other side of the motherboard, the secondary power supply to detect the 4Pin power cord plugged into the adapter card, you can achieve the same power supply and the main power switch machine, protection of power and graphics life. Colour: black Material: PCBA Size: 67x30mm Package Contents: 3 x 24Pin to 4Pin PSU Adapter. Only the above package content, other products are not included. Note: Light reflection 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.