I've been using this case with the 3's and now a 4, along with heatsinks, and it keeps the RPi nice and cool even when running a stress test.
https://www.amazon.com/gp/product/B01LXSMY1N/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 -Dj -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/e880bad0-499c-4570-9572-e3402ccff0d3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.