SB 2.0 Dual Power allows the data link and the power of USB devices. Can be used to connect a PC to an external USB device that requires an operating current greater than 500mA (eg external hard drive Hard Disk 2.5 inches). It has two USB connectors Type A: the first is for data transfer and power, second only to the power supply. At the other end of the cable has a connector type mini B male to connect to the device. It is used on HUB. The cable is 1.5 meters long.
This USB 2.0 Type A male to Mini 5-pin cable features a standard Type-A USB connector on one end and a Mini Type-B connector on the other. You can plug the Type-A connector into your computer, then plug the Mini Type-B connector into a device with a Mini Type-B port. Devices like mobile phones, MP3 players, tablets, digital cameras and digital camcorders often have Mini Type-B ports