This case is composed 6 pieces of clear acrylic sheets, and can hold your 7-Port USB Hub (BIG7) and Raspberry Pi together. The acrylic sheets are 3mm thick and the case can protect your 7-port USB hub + Raspberry Pi very well.
The top cover can be opened so you can connect/remove cables to/from the CSI and DSI connectors. There is also a window for GPIO header, so you can still access all GPIO pins.
Remarks: starting from 2023.08.08, we added a new plate into this kit to support Raspberry Pi 4. However please be reminded that the pogo pins can not be used on Raspberry Pi 4, and you will need to connect BIG7 and Raspberry Pi 4 with mini USB cable.