12V 5A 60W switching power supply. Best for powering Quads and Singlets.  Plug size is 5.5/2.1 mm. Power supply comes with a US 110V plug.  By swapping the power cord can be used with 100-240V~50/60Hz power. If you add the power jack to screw terminal adapter below you can use this as a general purpose power 12V supply.  Peak-to-peak output from DCC booster will be about 10.5 - 11V varying with the load.