compact and retractable USB Power Port Ready charge cable designed for the Zagg ZaggKeys PROfolio and uses TipExchange Ever been stranded with a dead battery because your USB data cable didnt put your Zagg ZaggKeys PROfolio into charge mode? At Gomadic we resolved this issue ... read on below in to learn what we do different with our USB Power Port Ready cables Included TipExchange Tip ensures the fastest charging by putting your phone into charge mode rather than the typicale USB data mode that every other brand does ... this attention to detail resulting in faster and more consistant USB power port charging Cable tip wiring and power configuration is designed to Zagg specification to guarantee to put your ZaggKeys PROfolio into the proper charge mode for the fastest charging possible Gomadic Lifetime Warranty ensures the product is built to last. no additional AC power required. Uses power from the USB port of the computer to charge the Zagg ZaggKeys PROfolio.