What is the "recording" limit of a VIGI NVR

What is the "recording" limit of a VIGI NVR

What is the "recording" limit of a VIGI NVR
What is the "recording" limit of a VIGI NVR
Friday
Model: VIGI NVR4032H  
Hardware Version: V1
Firmware Version: X

I got a question to the VIGI NVR4032H:
The decoding capability of the NAS says 8-ch 4MP (2560x1440p).

Incoming Bandwidth 320mbps.

What is the limit of continuous recording cameras? 320mbps? or 8-ch at 4MP?

The reason why I ask is, because my current NAS gives "recommended" resolutions such as at 1440p 120FPS recording capacity. At the moment 8 cameras at 4MP, 25FPS, H265, "only" takes around 35mbit (fixed bit rate). So if I would setup the NVR am I able to connect so many cameras to it as long as the bandwidth would go with, or does the NVR says e.g. after 8 4MP cameras, maximum limit reached. As for most cameras on my end I don't need a live view I would just need the recording function. 

Home: 1x ER8411, 1x SG3428X-M2, 1xSG2210P, 2x ES205GP,1x EAP-775 Wall, 1xEAP773, 1x EAP772 EU, 2x EAP653 EU, 1x 650 Desktop EU External: 1x ER7412-M2 Controller: OC220 v1
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