I have a 27" arcade monitor (KT-2914F) in my old MK2 cabinet. It came without a monitor, and I happened to have the 27" laying around. It fits, but BARELY. I actually had to angle it in to get around some trim pieces that retain the front glass. I also had to fabricate new mounts, but you could modify the original ones if you preferred. It doesn't really look too big to me, but if you compare side-by-side to a normal Midway 25" cabinet, you'll note a distinct lack of bezel.