Included is a black and a white bezel.
Even without inserted card / stick permanently on a blue lamp, which can interfere in the dark. It can of course be covered with black tape, that's enough.
Caution: There are two different models: AK-ICR-14 and AK-ICR. 13 The difference is that one internally connects to the motherboard the 14er, 13er when you lead out the cable from the PC and close them on the outside of the motherboard.