PESA’s RCP-128X is a 128 source, single destination panel allowing quick access button-per-source switching with Lock/Protect feature. The RCP-EXP128 is an expansion panel that adds an additional 128 programmable source selection buttons for the output destination to any of the PESA pushbutton panels. Pushbuttons are relegendable with LED backlighting in each for ease of reading in low light situations.