Current metal cases don’t fully enclose Rock Pis with metal parts.
FriendlyArm sells some of their single board computers with full-metal cases that serve as heatsinks.
I want full-metal enclosure cases for Rock Pis
This one not good for you?
It’s not a full metal case. The top side looks like plastic. The top lid could serve as a metal heatsink for M.2 SSD. I prefer full metal cases.