It is one of the best comprehensive universal single power block nowadays and its almost fully function can meet most of the effects. It uses a high-quality built-in R -shaped transformer which is better than VOODOO a separate DC 9V output as well as an independent short-circuit protection and they make the noises made by the power reduced to the lowest and also make the other effects operate normally even if one of them are damaged . In addition it provides the stable and clean current ensuring that your effects work perfectly and produce the best tone . It can provide a high voltage AC output for you to power your MIDI control pedal on your rack effects. And there are six DC 9V 100mA outputs two 9V DC 300mA outputs. What's more the 7 and 8 outputs can also adjust the 4-9V voltage output.