Yeah, it's one of those video wall systems that big companies and banks have in their lobbies. Usually retail for about £300k new.
My mate managed to get a hold of a 10 year old system from a bank building that shut down and the equipment liquidated through some office clearance company, got the wall of monitors for about £2k. We've been buying bits off ebay such as things like an image processors and various power and CAT7 network cables to power it to get it back up and running again. Managed to get a full picture going for the first time this evening. It's a freakin' beast!