Voodoo Lab Pedal Power 4x4, analogue power supply, specially made for power-hungry DSP effects, 2x isolated 9V or 12V 400 mA outputs, 2x isolated 9V 400 mA outputs, 4x isolated 9V 100 mA outputs, linear stabilisation with high end transformer (no hum), compatible with all 9V battery-driven effect pedals, power cable and 9V cable included, engineered and handmade in the USA