Aluminum Heat Sinks Extra High Pi Case with Silicone Thermal Pad for Raspberry Pi 4 Model B Black (AI-PI4-BB-PRO-H)

It takes heat to the side leaving top for expansion HATs. Enough space for more than one expansion hat. No metal on top and bottom of the wifi antenae so signal strength is great. Looks good. Edges are bit sharp. I could fit a led display and the camera module without problem. Still has space for future addition.

With the cheap heat sinks and under normal CPU load the PI4 was doing about 53 degC and under a moderate load it was getting up to 70 degC. After the case was installed the temperature under moderate load was between 40-45 degC and normal load was about 35 degC. This was all without a fan and with a HAT on top. It was a little tricky getting the HAT installed, the same screw tap that holds the PI4 on the bottom of the case also holds the standoff for the HAT on the other side. I used a plastic standoff with a short screw thread sticking out. The only real downside is the cost. The case is well made and they give you an allen wrench and the silicon pads to transfer the heat to the heat sink. They also include an extra screw of each type and an extra rubber foot pad.

This is a perfect case if you're looking to run a Raspberry Pi 4 with a hat. I'm using this with the official PoE+ hat and it works super well. If you do purchase this for use with the PoE+ hat, keep in mind you'll need some extra tall female headers for both the 20-pin GPIO and 4-pin POE connectors. I had good success with the "DIKAVS Break Away 2.54mm, 0.1" 40P Breadboard PCB Protoboard Connector Stacking Header Female Extra Tall Header for Raspberry Pi for Arduino (Pack of 5)" product here on Amazon. Additionally, you'll need some standoffs - either you can use extra long M2.5 screws in the bottom and attach some female -> female coupler standoffs, or use some M2.5 standoffs, which will thread in to the provided holes. Might just need to experiment to find the exact configuration that works for you.Regardless, with some experimentation, this is the best case I could find for use with a hat. Expensive, but highly recommend.

Probably, this is the best case I had ever seen and use. Height is enough to put inside original Raspberry Pi PoE HAT without a fan and fan HAT. Now I have nice looking cold and silent computer.

I ordered this case to house a Raspberry Pi 4 with a 4 relay hat, so needed the extra height. This case is beautifully made and of high quality, it fits the Pi with hat very well; there are small risers that fit between the plexiglass lid and the aluminium body that gives sufficient clearance between the top of the relays and the lid, and this also allows for heat dissipation. The black coating is even and well applied, the rounded corners very nice. Overall I'm happy with this purchase, it does exactly what I wanted.So why 4* and not 5*? Minus half a * because it's expensive, $50 is a lot for this. And minus another half * because the plexiglass cover had some manufacturing scuff marks on one side (basically scratches) near the screw holes - not bad enough to merit a return and replacement but still not ideal.