This is new designed ABS case, it is suitable for Raspberry Pi 3B+ , Raspberry Pi 3 and 3.5 inch screen. When you just want to use the Raspberry Pi, there is GPIO hole, cooling fan hole, camera hole, CSI hole on the top piece, it won't effect you use most full function of Raspberry Pi with the case. When you want to use Raspberry Pi with 3.5 inch screen, you need remove the top piece, please note.