Pros: Easy to install and load drivers (Win7 64bit). Solid USB 3.0 and 2.0 speeds.

Cons: Notta. *Just remember if you use a usb extension cable to hook a up a USB3 device, you need a USB 3 CABLE!!! If you use an old cable like I tried, you'll be stuck with USB 2.0 speeds. There is a difference :)

Overall Review: Forget about startech's website for drivers. They are stuck at NECEL-USB3-Host-Driver-10170. Google for NECEL-USB3-Host-Driver-10200, thats the latest and greatest I've found to date. Trying to get them straight from NEC is a joke; another case of big company can't find nothing on website.

Pros: Works well, easy setup with downloaded driver, fast (nearly 4 times as fast as USB 2.0). Based on other reviews, downloaded latest driver rather than using the one it came with.

Cons: None

Overall Review: Compared transferring 47GB (several ghost images) to external USB 2.0 drive. Fresh boot up between tests. USB 3.0: 10 minutes 13 seconds, USB 2.0: 40 minutes 24 seconds. Using with BUFFALO DriveStation 1TB USB 3.0 External Hard Drive HD-HX1.0TU3.

Pros: Simple install. Includes a low-profile bracket in case it's needed.

Cons: Unable to successfully install drivers off of the cd, as many have stated. The downloadable .zip file found on Startech's website solved the problem within a couple of minutes.

Overall Review: Make sure you have a free connector coming from your power supply to support this card. (LP4 Molex connector, 4-pin)

Pros: Inexpensive for what you get, includes optional bracket and molex power connector in the box

Cons: Connecting the molex power connector is a bit tedious and requires enough force to make you uncomfortable, another reviewer mentioned that routing the power cable was a chore...it WAS! USB 3.0 is definitely an improvement over USB 2.0, but there are many factors to consider if your expecting the "up to 5.0 Gbps" speed... Hard drive write speed, CPU overhead, etc.

Overall Review: From my internal desktop drive I copied 61.6 GB of high definition mkv files to a Seagate FreeAgent GoFlex 1.5 TB external hard drive with USB 3.0 interface (5400 rpm) using the StarTech pci card in approximately 23 min and 49 sec ignoring burst speed, these are my results... highest 44.5 MB/sec average 42 MB/sec minimum 40 MB/sec

Pros: Installed and working in 10 mins. Low profile mount included- not needed in my case, but it's nice that it's thrown in. I seem to average about 2G/min writing to a 7200 SATA external. USB 3 is still evolving, but this card seems to be on par with all the real-world transfer speed tests of other USB 3s.

Cons: Mostly cosmetic, but it requires a molex power input. Since this is such a tiny card, this makes it near the back of your case, where you normally don't have any power running to. For people with a basic PSU, this might be a bit of a problem trying to chain this with the cables that feed their HDs, optical, etc. For me, with a windowed case and cables all nice and neat, it took a bit to redo stuff to get molex power over there. Ideally, they should have a 2' slim cable coming off the card with the input at the end. Again, mostly just a cosmetic complaint though.

Overall Review: I'm not sure why someone with a tech level of "5" is complaining about no instructions. It's a PCI-ex card- pop it in and start the comp. I went to Startech's site and found the drivers in all of one minute. I normally don't even bother with the included CD for any new hardware anyways- just grab the latest drivers from the manufacturer's site. Protip: devices require a replug after driver install if you already plugged them in.

Pros: Easy to install. Runs fast.

Cons: None

Overall Review: Good card. Good price. Just make sure you plug the card in to the power supply or you won't get stable speed.

Pros: - works in Windows Server 2008 R2 (64-bit), plugged into PCI Express x16 bus (though it requires only PCI-E x1, which my server was out of) - trivially easy installation from the CD. if only all storage controllers installed so smoothly.... - throughput - on a 4+ year old motherboard from Gigabyte, it allows minimum of 110-120MB/sec sustained read performance on my USB 3.0 storage devices (USB 3.0 ThumbStick, Seagate 500GB 2.5" external backup, Corsair AirVoyager 1TB 2.5" external backup); I didn't test write throughput, but I expect to see numbers comparable to eSATA-connected devices. - I owned another StarTech product, 2x eSATA ExpressCard for my laptop, for over 3 years, and found that one very reliable (the manufacturer even included a piece of plastic stabilizing the narrow card in a wide ExpressCard socket, which was a nice surprise). it didn't quit on me yet, so I expected this PCI Express card will not quite on me too soon either. - attractive price - the card gives me all it promises and all I want for a price I'm happy to pay.

Cons: - after plugged in and the system was booted, Windows Server 2008 R2 showed a problematic device in USB controllers section in Device Manager. I tried updating the drive automatically (from Web, Windows Update etc.) but that didn't work. I admit, I'm a little spoiled by devices that you plug in, and Windows finds drivers for them immediately (for more than 10 years, with the exception of certain printers). Not a big deal here - the provided CD allowed smooth installation of the proper driver, with absolutely no issues. I didn't even have to go to StarTech's website to find a driver, all I needed was in the box. - the card requires additional power, through a Molex connector. the box includes a Molex-to-SATA converter, but it's a short one, I could use one 2 times as long. I had a problem rearranging my power supply cables to provide power for this card (it's very short). Seriously, the manufacturer should assume that all Molex/SATA power cables leading from the PSU are often leading very far from the card's location (to hard drives/optical drives), so sometimes it may be impossible to provide power to the card without re-arranging hard drives in the system. I could have also gone and bought a longer power splitter/plug converter cable, but that's an extra few $ and a trip I don't want to be wasting time on. Please provide me everything I need in the box, even if I have to pay $3-$5 more. Alternatively there could be a cable converting power from those 6- and 8-pin PSU cables used for video cards (I'm not sure about the voltages, perhaps that's not a feasible option).

Overall Review: It's hard to find any real con for this product. Maybe it will quit working on me too soon, but that's not the experience I had with StarTech. I'm slowly becoming a loyal fan and remembering the brand when I talk to others about hardware-related topics. I ordered another StartTech product, USB 3.0 ExpressCard for my laptop. My expectation is I'll see the same solid build, durability, reliability, ease of installation, and performance. So far, despite minor glitches (most of them have to do with non-automatic driver installation) I can recommend StarTech to anyone.

Pros: Easy to install and setup, fast operation. Win 7 system image backup of two volumes totaling 448GB to USB 3.0 Seagate 2TB hard drive (using external power) took 1:16:23 (one hour, sixteen minutes). I'm happy with that. Seems almost as fast as eSATA.

Cons: Power adapter/cable too short. (Didn't need, using powered external HD.)

Overall Review: System info: Dell Optiplex 960 (SATA2, PCIe x1 V2) Intel Core2 Quad CPU Q9650, 4GB RAM, Win7 32-bit, USB cable supplied with external HD. Driver CD received with the USB 3.0 card had the correct driver in a folder correctly named for the card. Browsed CD, went to the folder and ran setup, worked fine. (Had to reboot after driver install for .)