The SPRO B3 recorders can record up to 8MP when in CVI mode, 5MP when using TVI or 2MP when using AHD. The extra IP channels will also be recorded at 8MP. They also have advanced features such as face detection and tripwire.
As standard the B3 range of DVRs support audio over co-ax, alarm over co-ax, IP audio over CAT5e, 4K video over co-ax and PTZ control over co-ax meaning less cabling for you.
Recorder Resolution: 8MP
Face detection: Yes
BNC Channels: 4 Channel
Extra IP Channels: 2 Channel
Audio over co-ax: On each channel