Have you ever tried to use dual PSUs on one mining rig?

You can use a plug to trick the second PSU into turning on but you can’t control the on/off switch.  It stays powered on even if you power off the rig. You have to use the switch on the back of the PSU to turn it off.

This cable allows you to turn off your second power supply unit when you power on/off the rig. This cable is a must have for mining rigs running dual power supplies.

• Enables use of two power supplies on one motherboard.
• Powers both PSU on/off at the same time.
• Perfect for Bitcoin and Ethereum mining rigs.
• Can be used with both 24 pin and 20 pin ATX motherboards