1.1*USB to USB3.1 male connector, backward compatible with USB3.0.USB2.0,USB1.1
2.1*USB3.0 standard port, theoretical transmission speed 5Gbps, backward compatible with USB2.0, USB1.1. USB downstream current 500MA
3.2*USB2.0 standard port, theoretical transmission speed 5Gbps, backward compatible with USB1.1. USB downstream current 500MA
4.1*SD card reader port, 18-20MB/S
5.1*TF card reader port, 18-20MB/S