1,stable dock connector link and charging 2.Quick transfer data with USB port 3,length:1m TPE cable 4 ... iPod/iPhone/iPad and designed to cater the 2.1A output power charging as well as synchronize ... 2.Quick transfer data with USB port 3,length:1m TPE cable 4,certificate: MFi/CE/Rohs MFi 30 pin connector ... 3,4,4S, iPad1,2,3, iPod nano, iPod touch MFi 30 pin connector cable for iPhone 3,4,4S, iPad1,2,3, ...