Smallest/Efficient x86 board for SCALE to be used as a remote backup for single 16 TB drive

[Stux]

People seem to like the Intel N100 for a low end NAS board.

https://www.reddit.com/r/DataHoarder/comments/1bedpcy/n100_and_n5105_itx_nas_motherboard_review_six/

Low-cost 2-drive NAS box?

These “AOOSTAR” R1 Mini PCs might be right up your alley at $319 It’s running an N100 CPU, 16GB DDR4 RAM, includes a 512GB NVMe SSD, Intel i226-V 2.5Gbps NICs, and has two drive bays for 3.5" HDDs. For $199 you can buy it without the RAM and NVMe SSD, in case you wanted to customize it a little for your needs. If you’re willing, these are abundant on AliExpress even cheaper. I’ve owned a couple and had no issues with TrueNAS SCALE while I was using them.