How to power through 12v hub

tmlewis48

I recently purchased a U 57 for use in astrophotography.  I need to power it through my HUB.  The U 57 will not accept a standard 12 v cable.  

Are there any adapters available?  Powering through the ac adapter is not an option

beelink

U57 uses 12V 3A power supply, as long as the voltage and current are not less than 3A, it can be used