WITRN Package listing: 1 x Micro USB B to USB C Male adapter.1 x Micro USB B to USB C Female adapter.1 x Micro USB B to USB A Male adapter.1 x Micro USB B to USB A Female adapter. Mini size, plug and play, easy to carry, sturdy aluminum shell protection. Micro B 3.0 to USB3.1 Type A/C adapter with 5/10Gbps ultra-high transfer rate and 3A charging current ultra-high performance. Different computers and USB devices are slightly different, and the actual usage shall prevail. Micro B to USB 3.1 A/C adapter ---Play and Plug, Mini Size Design, Easy to Carry, with Solid & Secure Connection. It is well fit snugly on both ends and offers a firm connection between the portable external hard drive and your laptop, which greatly ensures stable and fast data transmission. This Micro B to USB A/C adapter supports USB 3.1 devices (10Gbps), USB 3.0 devices (5Gbps), and backward compatible with USB 2.0 (480Mbps) and USB 1.1 (12Mbps) specifications. This External Hard Drive USB A/C Connector can easily expand the storage space to your laptop via attaching a portable USB 3.0 hard drive, edit the videos/photos/documents on your hard drive quickly.