P4 power to P6 power cord (6-pin) motherboard power supply interface. The power supply for the motherboard can be transferred from the ordinary 4-port interface on the host power supply. Bus length is about 18CM Graphics card supply line Computer power supply big 4P [D head IDE head] to graphics card 6P adapter cable RoHS compliant Usage description: Large 4P (D type) to 6P graphics card power line type PCI-E graphics cards generally have a 6P power supply port. If this power supply is not connected, there will be a warning that the graphics card power supply is insufficient and the graphics card will be used at down frequency! Ordinary power supply does not have that power interface, and this adapter can easily solve this problem!