The Rockboard Power Pit is a versatile power supply for effect pedals. It delivers 4 x 9 V outs (500 mA total), 3 outs with adjustable Voltage (7.9 V - 9.4 V) for battery simulation, and another 1 out with adjustable voltage (9, 12, 15, 18 V). Via display you get the chance to overview your voltage adjustments. In addition, there is one out for mains plug to supply further devices.
Product Ref: 67217