HDPLEX 400W Hi-Fi DC-ATX Power Supply (Wide 16V-24V DC Input) Support 400W and 500W Peak with modular ATX output,&gt;94% DC-DC Efficiency Texas Instrument TI-LM2642 chip,WIMA Audio Grade Capacitor, INFINEON MOSFET, and 4 layer 2oz Gold PCB. 150mm(L)x51.5mm(W) Small Footprint. Germany Wrth Elektronik High Current Inductance, Smooth Response and Low Ripple Noise, Long life Solid Sanyo Capacitors Dual Aluminum Heatsink,PCIE 6+6+2PIN AUX Power, Support High Power Video card Support 7.4x5.0mm w/PIN DC Input Jack, wide range AC-DC Adapter compatibility