I recently purchased an External Drive Dock for work; this allows me to plug 2 SATA drives into my USB3 card, power on the dock, and mount (up to) two internal hard drives as if they were normal USB drives.
This Cavalry "Retriever" Series is the second Cavalry dock I've owned, the other being a perfectly-functioning USB2 dock. But while buying new hardware, we wanted to get the newest and fastest, so USB3 it was, in conjunction with this great USB3 card.
The USB3 Cavalry dock works perfectly in a USB2 port as well, and isn't any slower than it should be, meaning that there aren't any USB3/USB2 compatibility issues.
Another cool aspect of the Cavalry Retriever series, although we've not yet used it, is that it allows one to plug two dries in and duplicate one drive to the other. Very cool to be able to do drive duplication without even needing a full-blown OS.
The Cavalry wasn't our only attempt at this; we tried with a Sabrent DSH-USB30 dock but it couldn't maintain the USB3 connection, and I don't recommend it. I was getting many kernel errors (Linux 3.0.x) in dmesg while I was using the Sabrent on my Debian Sid system, such as:
xhci_hcd 0000:02:00.0: WARN: Stalled endpointUSB3 is a relatively new technology. Linux has drivers for USB3 before the other OSes, but that doesn't mean the manufacturers are making great hardware yet. Stick with what works.
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