1. It is made of aluminum alloy material
2. Enable you to connect up to two USB peripheral transfer data at up to 5Gbp/s. Backwards compatible with USB 2.0 devices
3. 4K video HD output adapter
4. Enable you to easily access files from an SD card or TF card directly(not included)
5. Slim thin and compact. No driver required. Plug and play. Support hot swapping function