Ask HN: Are USB external multiple disk cases reliable enough for RAID?

Next summer I'll be building a new bigger home file server and repurpose my current one as daily|weekly automated backup (wake up, sync, sleep) for most important data. The one I'm using now (1) worked flawlessly for like 7 years with the only downtime due to disk upgrades and I would like to maintain a similar configuration on the new one as well, however I wonder if a multiple USB3 disk drive dock case (2) could be a reliable solution today.

I'd put there a maximum of 5 disk pairs arranged as ZFS mirrors. My current server case wouldn't allow more removable disks so I have to move to a bigger one, but SATA capable ones cost a lot more, therefore not being in need of great performance, I wonder if I could trust USB for that use. I'm not sure if XigmaNAS, which is FreeBSD based, would support that; in that eventuality I would consider moving to a Linux solution such as OpenMediaVault or similar dedicated systems. Actually there is a similar case model with one eSATA port and 8 drive bays, but I've read about potential incompatibilities with port replicators, so I'm not sure what to choose. Any ideas?

1- Self built. XigmaNAS on a Supermicro X7SPA-L Atom Mini-ITX board, two ZFS pools plus one non mirrored disk for non important uses. All disks on internal SATA ports plus one on a ASM1062 PCI-E card I added.

2- https://icybox.de/en/product.php?id=301