Alinco's legacy continues with the New "Breakthrough" switching power supply with USB ports packs a lot of features into a compact, lightweight design that features 9-15VDC variable output and delivers up to 25amps, 30 peak. Unlike other "switchers", it's electrically quiet. But if you should find noise, don't worry! The patented Noise Offset Circuit lets you move the switching noise you might find to another frequency.