Help identifying NVR system

[Grumpy Ferret 0]

Good morning everyone, I hope I am posting in the right section of this forum.

I am hoping someone can help me identify the system I have. It was originally sold as a bundle with "WatchGuard" 1TB NVR and 4 "Swann" PoE bullet cameras
The only information I have is

Model: NVR4ENT3
Type NVR
Record Channel: 4
SN: [removed]
Web Version: 3.1.0.66469
System Version: 3.203.0000.0.R
Build Date: 2017-06-12
Onvif Client Version: 2.4.1

and the cameras 

Software Version 2.420.0002.0.R, build : 2014-06-21
WEB Version 3.2.4.184667
ONVIF Version 2.4.1
S/N [removed]

I think it's probably a rebranded Dahua system but I can't find any info on it or if there are any firmware upgrades available.

Thanks for any help you might be able to give me