What is wrong with
Blue Iris? An NVR is a stripped down computer after all....
When I was looking at NVRs, I realized that not all NVRs are created equal, and once I priced out a good one, it was cheaper to buy a refurbished computer than an NVR.
Many of these used computers are business class computers that have come off lease. The one I bought I kid you not I could not tell that it was a refurbished unit - not a speck of dust or dents or scratches on it. It appeared to me like everything was replaced and I would assume just the motherboard with the intel processor is what was from the original unit. I went with the lowest end processor on the
WIKI list as it was the cheapest and it runs my system fine. Could probably get going for $200 or so.
With that said, the NVR you are looking at is a good one and was the one I was originally looking it, but make sure it can run all your gear as you intend to run it.
NVRs cap out incoming bandwidth (which impacts the resolution and FPS of the cameras), so make sure you are getting video into the NVR the quality you want. For example, 4 channels will run 4K...total bandwidth limited to 320Mbps...Now keep in mind your Lorex NVR is even less capable and probably maxed out at 80Mbps and truly only one or a couple that could run 4K. I do not know which box you have, but my neighbors was limited to that and he is all upset it isn't 4K for all eight channels and he was capped out at 4096 bitrate on each camera.
So if it looks good to you with the Lorex NVR, it will look fine with this. Personally I couldn't see the difference on my neighbors TV with the little 2.8mm lens cameras and not all of them showing 4K that the cameras were "capable" of, but he swore he could see a difference on which ones were down-rezed.
Spec sheet for this NVR shows:
Display
Interface:1 HDMI, 1 VGA
Resolution:HDMI: 3840 × 2160 , 1920 × 1080 , 1280 × 1024,1280 × 720 , 1024 × 768 ; VGA: 1920 × 1080 , 1280 × 1024,1280 × 720 , 1024 × 768
Decoding Capability:
4-ch@8MP(30fps), 16-ch@1080P(30fps)
Audio and Video
IP Camera Input:16 Channel
Two-way Talk :1 Channel Input, 1 Channel Output, RCA
Recording
Bit Rate:16Kbps ~ 20Mbps Per Channel;
Max 320Mbps Incoming total Bandwidth