GeeekPi Raspberry Pi 4 Cluster Case, 4 Case with Cooling Brown
GeeekPi Raspberry Pi 4 Cluster Case, Raspberry Pi 4 Case with Cooling Fan and Raspberry Pi 4 Heatsink, 4 Layers Acrylic Case Pi Rack Case Stackable Case for Raspberry Pi 3B+, Raspberry Pi 3/2 Model B.