True. I wasn't factoring in Quck Sync. My current media server uses that for transcoding, so should be fine on that too. Good point. Yeah, 3-4 streams is the most it ever sees at once, usually 1-2.
My only concern with these one off mb manufacturers is driver support in your os of choice including Linux variants.
Also good point. Cursory checking shows the JMB585 SATA interface, i220-V intel NIC, and RTL8125B NIC should all have in-kernel driver support in recent Linux releases. Not sure about any other motherboard peripherals, but at least those seem to be supported. Definitely something to keep in mind. Thanks!