Compatible with Raspberry Pi 4 Model B & Raspberry Pi 3 B+ & Raspberry Pi 3/2 Model B; Raspberry Pi Board Not Included! Access to all ports and slots of Raspberry Pi, including SD card slot, GPIO port, USB ports, HDMI port and so on. The case includes cooling fans and heatsink for cooling down your Raspberry Pi better. The metal protective cover on the top will protect the cooling fan against being destroyed. The stackable case can provide you with an environment to put four pieces of Raspberry Pi board together. The instruction manual will tell you how to assemble step by step. Package Includes: 5x Acrylic Plates, 4x Cooling Fans with Metal Protective Cover, 12x Heatsinks for Raspberry Pi 3B+/3B/2B,16x Heatsinks for Raspberry Pi 4 Model B(Added on 2019.8.2), 1x Screw Set, 1x Screw Driver,1x Instruction Manual