Review on 📦 iUniker Raspberry Pi 3 B+ Case with Cooling Fan and Heatsink - Simple Removable Top Cover, Black for 3B+/3B by Andrew Holman

First my temps were 68-71 and now with this case they are 58-63 so it works (at full speed 5V). The instructions were printed for ants and you'll have to squint to read them, but it's not hard at all. I suggest looking at a good picture of the Pi's GPIO pinout and you should be fine. FYI, the fan stays on all the time when the power cord is plugged in. even if you close PI. Other thoughts, the silent mode on the 3V pin is really quiet but has little effect on cooling, 5V has a slight hum that is easily drowned out by game noise, but in a quiet environment it will be noticeable. I already had some heatsinks on my 3b, but here was a copper heatsink for the bottom RAM chip, which was a nice touch. My only complaint is that it blocks the power and activity LEDs, I'll probably drill a hole or two and put some filament in it, but that's an annoyance I didn't face with my previous $5 case.