You will need the adapter cable from aquacomputer. The Liang DDC molex connects to the adapter molex. the tach wire from the pump attaches to the tach signal wire of the adapter
that is in a 3 pin connector this is attached to the power outlet of the PA2. An available molex power connector from your PSU connects to the molex header on the PA2. A USB cable
connects to your mother board to the PA2. Only use the USB If you are not using the Aquareo 5 to control your pump if you are using the Aquaero 5 then you use the 3 pin Aqua bus
connected from the PA2 #2 aqua bus header to the Aquaero 5 HIGH side aqua bus header. I inserted an image of my pump that I modified. you will need to buy pins and a crimp tool,
make a cleaner installation, less wires. new at the photo thing that's why there is two of them.