I'm not sure what the actual story is on Knox, but I've heard various stories from multiple customers that amount to them not making that product anymore.
A lot of their former customers have switched to our Tahoe product:
[Link: neoprointegrator.com]Although the website has no picture of it, we added an optional 10.1" preview monitor, which is something that the Knox users liked about the Chameleon. The Tahoe can be configured up to 24x112 over Cat5/6 in a 6RU chassis.
I don't check this group on RC much anymore, but I'll try an monitor this thread, or just email us at sales at neothings dot com, or use the form on our site.
-Bill
NeoPro
619-258-2000