Wow, that's a sturdy little case. 1mm thick coated steel plates, room for (almost) any HAT or PHAT you can think of and good ventilation if you have one of the many fans available for the Pi4. My only gripe is the lack of M2.5 mounting hardware for the Pi myself. There are only eight screws holding the case together. There are two stud screw posts on the bottom of the case, but no screws or posts to attach the Pi. While this appears to have been designed for a large ice fan that includes the hardware if purchased with the case.
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