[Ron Reimers]

I don’t think Xyratex shows it any longer on their web site. Support for all the RS-16xx boxes disappeared awhile ago.

But on their FTP site (ftp.xyratex.com), all the models are shown, and the RS-1602 is still listed as a “current product,” although I am not sure it is still being made. But I don’t see any firmware updates there.

It apparently is still being sold by retailers such as Coastline Micro and others:
https://www.coastlinemicro.com/products/storage/JBOD-Fiber/xyratex-1602-F4.htm
But they only support them if you purchased it from them.