This USB dual power cable is perfect for connecting a PC to a bus-powered external USB device which has power consumption requirements up to 1.4A. It is ideal for use with USB 3.0 devices such as a USB 3.0 hard drive enclosure. It features two USB Type A connectors, one of which is a USB 3.0 Type A, the other being USB 2.0. The USB 3.0 connection provides 900mA of current whilst allowing SuperSpeed data transfer rates of up to 5 Gbps, while the USB 2.0 connection provides up to 500mA power only. The cable terminates in a Micro-B connector for connecting to your device.