I've got a matched trio of:

Quantum Atlas 10K 3.5 Series 18.2GB SCA Drives

18.2J TN18J881 REV 01-N XUC81

I haven't found the data sheet yet, but I'm hopeful they'll work out in Fast/Wide SCSI 2, I don't think I had any luck testing in 8 bit Fast 2 or standard SCSI 1.

However I do have half a dozen new SCA adapters for testing!

edit: http://www.memory4less.com/m4l_itemdetail.aspx?itemid=1457758548&partno=TN18J881&rid=fd_01

I guess, if everything says they're W-SCSI-U, that must mean they're U160 or it would say U360 because that's a better spec?