I have two Amcrest security cameras I pulled from a client install that they didn't finish paying for. It comes with IT rack monitor battery back up an 11 color cameras. Would be great for an office to see who's coming in or going. No subscription needed for this unit. It will record for play back. You just need to run cat 5 wire to it and plug it in to operate. Asking $500 you can text me at 918-804-77 two one