The Replaceable Electronics Kit (REK) and Replaceable Controller Kit (RCK) allow for the quick, safe replacement of video wall board components. The REK sits at the rear of the video wall panel just like any other video wall display, while the RCK sits on the side (as seen in the photo above). Should you ever need to replace a power board or controller board, the REK will allow you to replace both in one fell swoop. While the RCK will allow you to replace the controller board.
This is accomplished by simply loosening two thumb screws and then gently pulling downward (for REK) or to the right (for RCK). There is a safety hook which allow the kits to hang from their displays while you prepare its replacement.