The reason I ask, is the only way to truly saturate USB 3.0 would be with SATA drives. For any mechanical drives, wouldn't just about any USB 3.0 enclosure (even one that isn't fully up to snuff) be faster than the drive you put in the enclosure? Just in case that wasn't clear, what I am saying is let's say you have a 3.0 enclosure that can't do full USB 3.0 speeds, the hard drive inside the enclosure can't even do HALF USB 3.0 speeds (they top out at 150MBs or 1200mbs) so whether they can do full USB 3.0 or not really doesn't matter unless you fill up the enclosure with an SATA drive....