1. Material: zinc alloy
2. Interface: USB3.0 x3, SD card slot x1, TF card slot x1
3. External mouse, keyboard, U disk, hard disk and other devices can be connected at the same time
4. USB3.0 transfer rate up to 5Gbos
5. SD/TF dual card slots can read at the same time
6. Fast heat dissipation, compact and portable
7. Driver-free, plug and play, compatible with a variety of systems