Dual PSU cable. Secondary Power Supply Unit adaptor.
Add a second PSU to your PC
Connect 2 Power Supply Units together to provide more power to your computer components without having to upgrade your existing Power supply unit.
Your computer will require enough room to accommodate 2 PSUs. You can modify your chassis or purchase one of the Chassis mentioned bellow.
1x Male end (Motherboard side): 24pin
2x Female ends (PSUs side): 24pin
This is safe as the motherboard gets power from one PSU only. The second PSU provide power to other components. Both PSU start when the On / Off button of your PC is pressed.
1* Power Cable
Dual PSU Power Supply 24-Pin ATX Motherboard Adapter Cable(30cm) - B072JM7KVD