REMAX RC-024 ring cable. It is a high-quality dock connector extension cable, prolonged cable, convenient for anytime anywhere use with your smartphone. Portable and simple design, charging and/or data transfer with one cable. This can be used by your iPod/iPhone/iPad at a faster data transmission rate. Factory professional producing, charging and data transfer sync just when connected to a computer.When connected to a USB power adapter or charger dock it starts charging, USB 2.0 high speed for data transferring.