https://www.amazon.com/Enclosure-Adapter-Converter-3-5inch-Docking/dp/B0C493JS47

I found one for ~$150, but that's only 1 drive to USB3 - and you likely don't get the benefits of full-duplex SAS. The 1st link on AMZN is more like $186 and again, only (1) drive adapter.

Certainly you won't be doing any RAID or multi-disk zpools with something like that.