It's a DIN power socket so you can use it for lots of things. Most useful would probably be to put a DIN to USB adaptor in it and use it to power your "stuff". I was going to use it that way to power a Quadlock charger on the bars, but ended up using the existing USB socket in the "phone glove box" on the tank as it's closer and I wouldn't lose the space under the seat for the DIN adapter.