This is the case for the Raspberry Pi4 itself (the one with the blue USB connector in the middle). If you have a Raspberry Pi2 or Pi3 then please have a look here.
Additionally four countersunk M2.5 screws of 12mm length are needed.
There are no variants of this case. This version already has the slot for the PI camera flex cable in the lid.
A cover for the GPIO slot can be used to protect the GPIO slot when no HAT or display is being placed in top of the Pi.