“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!”