After going through this forum and a number of searches for an adequate system for my home, I finally settled on an 8 channel Dahua NVR with a 2TB drive. 2 cam so far and more will be ordered as time requires. My question is this, Ii saw a thread here on pin hole cams that are mounted in a small tube; Extreme Low light Pinhole Lipstick Bullet Camera Exview.0003 lux ex-view 4.3mm. Can these cams because of the bnc connector, be used/adapted to be used with a VDR which uses different connectors? Are there others like this for low light that can be obtained?