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Only use one method at one time Soundcard as power source Using the supplied self powered connector cable connect the 5 pin male plug to the Evolution MIDI keyboard and the 15 pin male plug to the MIDI port on your PC soundcard. IMPORTANT – DO NOT USE THIS CABLE TO POWER ANY OTHER EQUIPMENT or AC Power You can also use an AC adapter (not included) with the following specification: 9-12V DC output, 250-300mA, centre positive. or USB Connect to the USB port on your computer. The keyboard is powere