In the MPG review of the OWC Thunderbay 4-bay Thunderbolt enclosure, the only significant issue was the fan noise, which is now solved. I’ve been running an ultra-quiet fan for weeks now, and the very low noise is now eminently acceptable to my sensitive ears.
Get a replacement quiet fan for the OWC Thunderbay. Builds as of March 10 had a quieter fan as do all current builds.
I’m using two OWC Thunderbay units under my desk and I’m content with the fan noise. The noise is mainly hard drive noise now, and that is unavoidable. I plan to add a third unit.