alt Hacker NewsI've been using a Sonnet eGPU box with Nvidia GPUs (1070/3070) on an Intel NUC for about 5 years, and it works great.
One nice thing about the Sonnet eGPU boxes is that they use standard SFX PSUs that are inexpensive to replace if they fail.
For LTO, I'm cheap, and iSCSI over a dedicated 2.5 Gbps Ethernet link is fast enough for my aging FC LTO-5 drives and spinning rust backup disks.
I used Sonnet egpu box on a similarly equipped Dell XPS and it had so many little issues that it sold me off of eGPUs over Thunderbolt entirely.
Sleep broke across all OSs, if sleep didn't break the GPU wouldn't get powered on with the laptop. If one side lost power during an outage (the gpu side, the laptop has a battery..) it would require an elaborate voodoo ritual of cycling both of them on and off until they 'caught' each other. It would cause the rest of the USB ports on the laptop to reset and drop comms with peripherals once or twice a week, necessitating a rain-dance restart.
when Oculink first started showing up I gave up all together and just said "fuck it i'll try it again in a few years.".
It worked fine when it worked fine, but the patches in between were not worth my time.
I blame Dell and their thunderbolt controllers entirely for the issue, but it left such a bad taste in my mouth that I would have a really tough time buying the newest Sonnet box to try it out. Now I have a desktop machine and don't fall into that market.
I ended up throwing that card (an rtx 3xxx) into a dell rackmount and have been happy with that card ever since.
to your point though: the non proprietary PSU was a nice feature, but in reality the expansion card for PCI->Thunderbolt or whichever interface you're using can be bought on alibaba for like 20-30 bucks and the PSU is worth another 30-40 bucks , a generic white-label 650w. I think if I did it over i'd just do that and make an enclosure, but the Sonnet boxes aren't too bad a value by the numbers.