There are 10 pieces in the package. Adapts USB 3.0 Micro Type-B Female Connections to the other end and vice-versa, With this connector, you can DIY directly connect micro usb 3.0 socket, converted to other extension. Very easy to use USB 3.0 data cable connected to the Micro USB 3.0. Super-speed up to 5Gbps 10times faster than USB 2.0 Version, Support two-way data transmission at the same time. The USB 3.0 Micro-B consists of a standard Micro-B USB 5Pin, with an additional 5-pin place on the other side. Thats been done this way for USB 3.0 Micro-A host connectors to preserved compatibility with USB 1.
x/ 2.0 Micro USB cables. Theres no way to connect a micro USB 3.0 cable into a micro USB 2.0 receptacle due to obvious mechanical differences