1. HDMI interface: 4K*2K (3840*2160@30Hz), backward compatible with 1080P, 720P, etc., can share movies on a larger TV/monitor/projector
2. The USB 3.0 port can be used with keyboard, mouse, flash drive or USB cable to synchronize and charge smartphones or other devices
3. Small size, easy to carry
4. Support four simultaneous expansion
5. Aluminum alloy shell, fast heat dissipation
6. No need to drive, plug and play
7. Wire core material: tinned copper
8. Cable length: 110mm