The Synology End Game

But self-building a NAS is still a problem, and I'm also talking about this [1] article from the same blog:

There are NO low power NAS boards. I'm talking about something with an ARM CPU, no video, no audio, lots of memory (or SODIMM slot) and 10+ SATA ports.

Sure, anyone can buy a self-powered USB3 hub and add 7 external HDDs to a raspbery, but that level of performance is really really low, not to mention the USB random disconnects. And no, port replicators aren't much better.

[1] https://lowendbox.com/blog/are-you-recyling-old-hardware-for...

That would be nice, but Synology doesn't offer that either, no?

The closest thing available now would probably be a Radxa ROCK 5 ITX+, a motherboard with a Rockchip SoC and two M.2 slots, into which you could put their six-port SATA cards. No idea what that whole setup will draw, though.

EDIT: I have to complain about the article you linked. It's certainly true that one should account for power consumption, not just purchase cost, but some crucial mistakes make the article more harmful on the whole.

The author cites 84 W power consumption for an i5-4690, and 10 W for a J4125 CPU, but those figures are the TDP. For all we know, those CPUs could idle at around the same wattage, and from my experience they likely do.

Having done some measuring myself, I'd say the largest source of power draw in an idle NAS will be the PSU, motherboard, and disks. With any remotely recent Intel CPU, it idles so efficiently as to be negligible in a PC.