“This neat aluminium heatsink case does the job well. Good fit, hassle-free. Used it to build a 24/7 Pi-hole tracking & ad-blocker for a home network, with HW/SW identical to a previous unit done a month ago, except for the official plastic case.
With the aluminium case, indicated processor temperature stays at ca. 41°C, while in the official case it shows 53°C. Outside surfaces get only hand warm. Looks striking enough for me to recommend it at those few €€ price difference to plastic.
"Once you know plastic, you choose metal!”
“room temp: 23°C
raspberry with fan 38°C idle and 50°C in stresstest
raspberry with case no fan 45°C and 58°C in stresstest
only thing maybe to change, the passive heatsink is empty in the inner side, if it would be with chopper or something else it would be bether for temperatures.”
“I've read some reviews online and it's absolutely true. This case keeps your Pi cool without a fan. I play PS1 games and the temp stays between 45 and 55 degrees (celsius)”