Great little box. For the number of outputs, it is more compact than the nearest functionally equivalent Thomann or Fender products that I was able to find online. The switchable voltage is a must (I need 12 volts on several devices) and also the current ratings on the outputs are higher than rival units. In all a good device. In use, it is whisper quiet, and crucially the outputs are isolated from the USB, which is becoming ubiquitous as a power connector but which in many cases results in digital noise cropping up somewhere - a problem I now don't have.