Sorry, just noticed I put this in the Pro forum, not the normal 4k one!
Functionally there is no difference with 4K only throughput should be better for Q10 Pro (double?).
I am playing with the same idea: Docking stations are supported. 8TB drives are available and it runs standard both a Samba Server And a Client and finally has all the best network facilities included too. So basically it could be used as a NAS forgetting about RAID and selective authorisations that is. When I get mine ever, will report if and how well it works in practice. Tried it with an older generation media player but that one was just too slow for BD media.
I hope to get over 50 MByte/sec throughput, that would do it for me. In one of the Chinese reviews they measured SAMBA doing 25 MB Write and 29 MByte Read speeds to internal HDD which still is a bit on the low side. My NAS (which I sold again) reached 78 MByte/sec read peak. The dedicated NAS was an overkill and still falling short: Too noisy, too much power consumed, too many settings and features but not enough capacity (a 4 or 8 unit NAS is way too expensive) and all drives must be identical . A simple HDD-docking will do or re-use an old player as such via the USB-3 Slave port.