My understanding is the LK140 is totally different from the LK100 and they aren't compatible. I think it's much easier to put the cards in the LK140. I can actually see the card sticking out of the back of my LK140 so I think they are mounted differently. The cards may just slip in to the LK140, I can't quite remember and I have long ago lost the manuals but pretty sure the LK140 and LK85 may have the plates already inside.