Thank you for your response.
I need to know before I buy the ExHDD. I don't have it to test it with Crystal Disk.
I want to know what I'm buying. I'm considering a My Passport Ultra USB-C and a My Passport (non-Ultra) USB3.0. They're refurbed by WD. I would think the ULTRA with USB-C would be better, more expensive and younger but it's a little cheaper than the non-Ultra, USB-C one. Also, other refurbed ExHDD's of lower capacity are considerably more expensive than these two with more capacity. The USB-C one has the newer design enclosure. I would think it is younger and regarding all considerations, should be more expensive per TB than the others.