Case for a Raspberry Pi 4 B running Home Assistant OS with two modules :

• Zigbee 3.0 USB Dongle
• RTL-SDR Dongle for 433 Mhz devices

Other components used :

• 30mm fan (from my previous RPi 4 case)
• 4x m3 insert (CNCKitchen M3 standard insert)
• 4x M3x12

First version was with 6 screws, but the newer is only 4 screws.

No support needed.