In March 14th, we Geekworm updated the Raspberry Pi X820 V3.0 SSD&HDD SATA Storage Board Matching Metal Case / Enclosure + Power Control Switch + Cooling Fan Kit to a new version.
We added about 5mm height to make this X820 metal case to be suitable to install one more X735 safeshutdown HAT size expansion board at the top of your Raspberry Pi board. And it added two extra holes at the side cover for X735 board.
The updation won't have much influence to the X820 case apperance, so please don't worry, now it is more functional, and maybe you can add other HAT size board on your Raspberry Pi.
How to install the Raspberry Pi and X820 V3.0 board and 2.5 inch SATA HDD/SSD?