SAS Drive NAS

[ed]

There are few rackmount NAS that support SAS drives.

Here is Qnap
https://www.qnap.com/en-us/product/?conditions=5-2
And Synology https://www.synology.com/en-uk/products/...600/HD6500

Or you can try and use adapters:
https://www.qnap.com/en-uk/product/qda-sa
https://www.qnap.com/en-uk/product/qda-sa3