This enclosure is, in fact, JBOD.  Even the tech at my local computer store was trying to tell me it was RAID 1.

I bought one of these things a couple of years ago.  When it died (power supply), I bought another one, and the power supply worked fine.  I was foolish enough to keep writing data to it.  Guess what?  It died again, and this time, it would seem that this enclosure can't be found anywhere.

I bought a new JBOD enclosure and it works like a charm.  I'm retrieving my data as I speak and will NEVER write anything to combined discs again.