1. Material: aluminum alloy
2. Output interface: 4K HDMI+SD/TF card slot+2xUSB 3.0+RJ45
3. USB3.0 interface: 5Gbps transfer rate (can not read 2 mobile hard disks at the same time)
4. HDMI interface: 4K HD output, up to 3840x2160 60Hz
5. SD/TF card slot: can read and write SD card and TF card at the same time, 480Mbps rate
6. RJ45 port: Ethernet within 1000Mbps
7. USB/Mini DP male, suitable for Surface Pro 4
8. Dimensions: 110x39x12mm