cirtemid 0 Posted January 29, 2014 Hello all. Does anyone know if the PRO-642 cameras from Swann are compatible with their D1 Trublue DVR that is not the 960h version? I have a DVR4-4000 with no cameras. The Pro-642 cameras are a higher grade than some others so I was looking at getting those, but I saw a description which said they are compatible with 960h DVRs. Would it be a big problem if I used them on the 4000? Share this post Link to post Share on other sites