Whats the difference between Hikvision 71xx and 76xx, 77xx dvr's

[thumper]

I have two Hikvision DS-2CD2032F-IW 3MP HD 1080P WIFI Network Outdoor IR IP CCTV Cameras 4mm

Looking for , not sure what the difference is between NVR DVR to constantly record 1080p both cameras and over write when full.

Any advantages to POE NVR or using Injectors?

Now using POE injectors

Just trying to learn.

Thank You.

 

[badmannen]

did you learn or still looking?