Check the listing for details. TekPower TP30SWI 13.8V 30A DC 13.8V Switching Power Supply for Ham CB Radio. Condition: New. Listed at 99.99 USD. The TekPower TP30SWI is a professional analog DC power supply for powering many devices such as Ham/CB radio and amplifiers. It is a highly stable, fused, high quality switching power supply with 13.8V fixed DC power output, and 30A max current. It has a main DC output on the back of the unit and a snap in output on the front. It has excellent line and load regulation, low ripple and noise. It is designed to minimize switching noise specifically for communication uses. When there is noise, you can use the noise offset knob to eliminate it. It has many safety protection such as overheat and short circuit protection. It comes with basic 1 Year USA warranty. Specification: Input Power: 110V AC 60HzOutput: DC 13.8V, 30A(Max)Snap in output: 3A maxRipple voltage: less than 80mVp-p at rated loadFuse: 110V, 8ADimensions: 7.5 X 2.8 X 7.5 inchesWeight: 6 lb Package:TP30SWI Power Supply unitPower CordUser manual.