All Credit Card Power Banks come equipped as standard with a built in dual Micro-USB & lightning cable, as well as a separate Type USB-C adapter for the cable within the casing, enabling these Credit Card Power Banks to charge almost all modern smartphones and tablet devices without the need for separate cables. So how does a 3 in 1 cable built in within the Credit Card Power Bank work? On one side of the cable is a Lightning connector, turn it over 180 degrees and it is a Micro USB connector! f you need to use the Type C adaptor, simply plug the built in cable into the adaptor hidden inside the casing and slide it out, and it's ready to go. Learn more on our YouTube video here.