MINT CONDITION WITH BOX AND UK POWER SUPPLY POWER ALL YOUR DIGITAL PEDALS UP TO 500mA WITH A SINGLE USB POWER BANK-NO MORE HUM PROBLEMS The Mission Engineering 529 USB Power Supply is a reliable and efficient power source for guitarists using multiple pedals. With a consistent voltage of 9V, it ensures that your pedals receive the necessary power to perform at their best. This USB power supply also allows for easy connectivity and is a convenient solution for powering your guitar pedals during performances or practice sessions. Ideal for musicians looking to keep their pedalboard powered up and ready to go at all times.