The cable includes USB-A, USB Micro-B male connectors. The connecting cable Vention data cable is 3m long. The data transfer max speed is defined by the USB 2.0 standard. It's one of the high-speed interfaces that allow you to connect most devices with the right connectors. The cable also supports fast charging of compatible devices. The Sync & Charge function guarantees multifunctional use, which means you can both transfer data and charge the battery of your devices with up to 2.1 A.