The RockBoard ISO Power Block V10 is a multi power supply for effects pedals that offers 10 transformer isolated and highly filtered power slots — 8 x 9 volts (isolated) with a maximum current output of 150 mA each, and 2 x 18 volts (isolated) with a maximum current out put of 400 mA each — for separately powering up to 10 effects pedals simultaneously without any noise. The advanced filtering technology used in each of the power slots prevents high frequency noise. Through individual short circuit protection for each slot, connected effects pedals are effectively protected in case of a short circuit. Individual LEDs indicate short circuits for each of the 9V outputs. In case of a short circuit, only the affected slot is being turned off, so undisturbed use of the rest of the effects pedals is guaranteed.