Assembly Instruction KKSB 19 inch rack 2U - 10x Raspberry Pi - Space for HATs
a) Mount the cooler onto the Raspberry Pi. b) Attach the Raspberry Pi to the tray using the standoffs. c) Install the 40 pin GPIO header, if required for your HAT to fit.
Mount the HAT, if you are using one.
Mount the assembly into the panel. Repeat the process for the remaining trays.