Our HD-SDI cameras offer all the benefits of Megapixel IP Network cameras without the complicated networking part. These HD security cameras are only compatible with HD-SDI DVRs (Our HD Series of DVRs). These surveillance cameras are capable of 1080p video transmission just like a 2 Megapixel IP camera, but it uses conventional COAX cable like RG59 or RG6 instead of network cables. This means you can upgrade a standard CCTV security camera system without replacing all the cables. Just replace the cameras and DVR with HD-SDI components and you will have increased your video resolution dramatically.