Need to charge a device? The USB Power Output Moduleξis a solution for your modern day devices such as iPadsÎÂ, iPhonesÎÂ and other smart devices that are progressively replacing paper chord charts and music sheets. Utilizing a 9VDC Š—– 24VDC power input range, you can power your USB device (up to 2.1A) with your existing pedal power supply. The charging output is relative to amount of 9V power you have available from your power supply so it only uses what it has to.