It has SB port, through OTG connection, you can connect a mouse to use; have extended performance, TF Card slot, support extended 64G.
Description：With this VR, you can play amazing games,watch movies，experience three-dimensional effect.
Processor: Rockchip RK3126 four-core ARM Cortex-A7
RAM Memory: 1GB DDR3
ROM: 8GB Flash/（16GB Optional）
TF card slot *1,Support extend (Max 64 GB)
Standard 3.5mm headset output *1
Support USB OTG*1
1* VR headset
1* Power Adapter
1* USB Charging line
1* User manual