Description: This board can be connected two small power at the same time, increasing the power supply This adapter transforms two power supply into a higher power supply Interface: 4Pin Material: Plastic Size: Approx. 67*30*15mm / 2.63*1.18*0.59inch Package Includes: 1 Piece Dual Power Supply Board Note: 1. Insert line must have a clear understanding of the direction, do not insert or insert deviation, prevent burning equipment; first holding equipment and then plug line to avoid excessive force to insert and broke the socket pin 2. The main power supply 24pin plug into the 24pin female head on the other side of the motherboard, the sub-power supply to detect the SATA power cord plugged into the adapter card; the sub-power supply and the main power supply switch machine at the same time