For your Bitcoin, Litecoin Mining machines with multiple power supply(PSU)
When the power supply is not enough, the graphics card power is allocated to two power supplies to substitute high-power power supplies.

Specifications:
Product Name: Dual Power Synchronous Startup Card
Brand：MZHOU
Interface： ATX24P PIN (SATA)
Model: ATX2ATX-N03 VER004
PCB color: Green
Product material: Metal galvanized
Power port: SATA (the other is a large 4 PIN)
Support system: Fully compatible

Features：
Synchronize power supply to solve insufficient power supply
Support Multiple Power Supplies for Crypto Mining Rig
Protect the life of the power supply and the graphics card.
SATA power to the board from the primary PSU
The secondary PSU plugged into the ATX power on the board
PLUG AND PLAY simplicity manages additional power for hard drives and cooling fans.

Working principle:
When the power is turned on, the main power supply has a SATA electrical output, and the relay on the transfer board is activated, and the auxiliary power switch is turned on to turn on the power supply.

Wiring Method:
Plug the 24PIN of the main power supply into the 24PIN female plug and plug the other end into the motherboard.
The secondary power supply's detection SATA power cord is plugged into the adapter card.
The auxiliary power supply and the main power supply can be turned on and off at the same time to protect the power supply and Graphics card life.

Note：
Be sure to recognize the direction when plugging in, and don't plug it in reverse or off-position to prevent the device from being burned.
When plugging in, hold the socket of the device before plugging in to avoid inserting the socket pins with excessive force.

Package Includes:
2 * PSU Multiple Power Supply Adapter
Packed in static bag