Hi Scott (and everyone else who replied), As other on the thread have zero'ing in on, it is likely an issue with whatever
USB/SATA adapter your using. This was a known limitation of early chipsets, and I recall the marketing shift to 'supports larger then 2TB!'.
Pretty sure that's it. As I look around at what's available, even finding one now that supports 10TB is not so easy, many top out at 8. Since I can't yet put the drive in the chassis I have this enclosure <https://www.amazon.ca/ORICO-Screw-Less-3-5-inch-External-Enclosure/dp/B00GAML7OK/ref=sr_1_3> on order which will be useful later anyway. Thanks for the feedback. Anyone want my existing enclosure? I can bring it to the next meeting. You all know its limitations, but can't beat the price, -- Evan Leibovitch, Toronto Canada @evanleibovitch or @el56