myVolts Ripcord 7.5V DC, Voltage converter and adapter cable, Supplies synthesizers, effect devices, MIDI equipment and numerous other devices with power via USB port, power bank or USB power supply, 7.5 V DC, 1.2 A (1200 mA), Polarity: centre positive, Output: 5.5 mm barrel connector, 2.1 - 2.5 mm inside, Input: USB-A, Cable length: 145 cm