Review on GeeekPi Raspberry Pi 4 Armor Case with Dual Fan, High Quality Raspberry Pi 4 Aluminum Alloy Case with Cooling Fan for Raspberry Pi 4 Model B (2510 Fan) by Andrew Webster

You don't really need a lot of instructions but they help a lot with the cooling part, it's very simple and easy to assemble. The case is very solid and the design is metal that protrudes on the sides in a way that protects the pi IO pins from damage in most falls or bumps as it can hit the metal on the frame, preventing that things reach the pins if they aren't aimed right straight at contacts. My only complaint is that I wish the cable routing for fan power and I/O ground were somehow cleaner, but that's no blow as it's the best way to solve a problem I'm having in cases where I've been fully exposed to /O as I can't think of a way a package can expose all IO and not have a little wire weirdness. I've had it for a few months now and I'm generally a bit rough with my hardware and the fans are stable and temperatures are okay. The fans are a bit noisy but they keep the Pi cool and I might replace them if it really bothers me. This Pi performs constant cleaning of security camera streams sent to it using Tensorflow and OpenCV. It's an 8GB Pi 4 so the workload it runs is on the higher side and cooling the bot in general was an issue when I was mass overclocking. It wouldn't work, but it's overkill and unnecessary for most Pi projects.