Dahua HS vs non-HS NVR differences

[polaris]

I cam looking at Dahua's NVR4108-8P-4KS2 vs NVR4108HS-8P-4KS2. Seems like they have identical specifications but a bit different dimensions. Are there any practical differences between them?

 

[MixManSC]

That appears to be the case is just a difference in the form factor...

https://dahuawiki.com/USA/NVR/