Pros: It works with Ubuntu 14.04. Even better, it works with smartmontools. (Use smartctl -d sat ... or smartctl -d sat,12 ... ). It also works with Inateck Superspeed 7 Ports PCI-E to USB 3.0 Expansion Card. And it's not much more money than several similar products that don't work at all with Linux, and/or don't work with smartmontools, and/or don't work reliably, and/or don't work longer than a few minutes.

Cons: I wish I could buy these more cheaply without the power supplies, screwdrivers, and USB 3 cables. I'd probably buy a couple dozen of them.

Pros: As I said above in a previous review, it's an I/O monster. 12 sata ports!

Cons: Quality control is just awful. Newegg has sent me 3 of these board in rapid succession. The first one died after 31 days, but Newegg took it back anyway (good move, Newegg!). The second one was defective: 3 inoperative SATA-3 ports. I could not make the third one's ethernet port talk to my network. Installing a motherboard is not a trivial procedure. I have wasted many hours on this board, and I have nothing to show for it. ASRock support is polite, responsive, and genuinely interested, but unhelpful in any substantive way. I finally sent back the third board. I don't have time to install motherboards endlessly; it's not fun.

Overall Review: Not an ASRock customer any more, even though I have 7 of their motherboards (an earlier, now-discontinued Extreme X58 model)

Overall Review: It works for DVI-D 24+1.

Pros: It comes back on after a power outage. It works. It doesn't overheat. I can leave it open to keep the disk cooler (although in that case I have to put a velcro strap around it to hold it in). Good sale price ($18.99). I can stand it on its edge, but only in a place where it's unlikely to tip over.

Cons: Does not include a stand for keeping it upright, so it occupies more shelf space than it needs to.

Overall Review: Based on my experience, this is recommended. I just bought 2 more of them. This advice is for Linux geeks: the vendor:product code for the usb-to-sata bridge is 152d:0578. (JMicron, apparently.) As sometimes happens when I use the default "uas" driver, the syslog gets a lot of reset messages, but it seems to work OK nevertheless. Those resets probably won't happen if I use the "usb-storage" driver instead of "uas". For more info about these syslog messages and how to quirk your way around the problem (whatever it is, and it's probably a uas driver issue that is regarded as non-critical), see https://unix.stackexchange.com/questions/441668/debian-usb3-hdd-uas-i-o-errors

Pros: Looks good.

Cons: Unable to test. Power cannot be connected using industry standard plug.

Pros: decent construction. Mine contains a Matsushita UJ-8400 drive.

Cons: 1. Can't write faster than 2.4x. I'm using the most recent version of cdrecord (Joerg Schilling, Cdrecord-ProDVD-ProBD-Clone 3.02a07) under Ubuntu 16.04. I don't know why it's so slow, but it is. Reads at the advertised 8x speed, however. Seems reliable for both reading and writing. 2. The USB symbol appears on the wrong side of the USB plug. No big deal, but something to get used to.