Pros: Powered off computer, inserted the card, powered on computer, plugged in USB-3 GoFlex hard drive, that is it. It took 2 minutes 40 seconds. Works fine under 3.3.0-rc7 and 3.0.3 kernels. No, drivers, no customization is needed. Heard that old 2.6.x kernels did not support EJ168 chipset. Check your kernel (uname -a) and upgrade if your kernel is too old. Speed test of GoFlex hard drive connected via usb-3.0: 1) hdparm -t /dev/sdX: 125 Mbytes/s; 2) dd if=/dev/zero of=/xxx/test.dat ibs=1024M count=4 conv=fdatasync: 112 Mbytes/s. This means the card's speed is no worse than 125 Mbytes/s.

Cons: lspci does not report explicitlu which chipset is used. It tells only "USB Controller: Device 1b6f:7023 (rev 01)"

Pros: None

Cons: No low profile bracket might be a problem for some.

Overall Review: Pretty straight forward card, cheap and works as it should. Worked out of the box for Windows 7 without installing drivers off of CD and same for Ubuntu 12.10. Some people complained about a lack of power for external devices but I do not see that problem, I have two portable hard drives connected to it and can get sustained 80mbps transfer speeds at the same time from each one. For $15 you can't really go wrong.

Pros: -Installed software -Installed into a PCI Express x1 -Windows 7 recognized right away -Get 80 - 120 MB/s depending on what is being transferred. So much better then the 4 - 6 MB/s I was getting with 2.0 -$9!

Cons: -Not a huge con, but my USB 2.0 flash drives are faster on the 2.0 ports then on the newly installed 3.0

Overall Review: The amount of time you will save with this card if you have any USB 3.0 devices is well worth $9.

Pros: Put this card in slot. Windows 7 recognized it right away. Great Speed over 2.0 ports. Getting consistent 68.4 MB/second.

Cons: none.

Overall Review: Would recommend this to anyone needing to add USB 3.0 to their computers.

Pros: Was bundled free with external enclosure Fits perfect in Antec 1200 case Drivers worked off CD

Cons: So far I have none.

Overall Review: My XFX 680i mobo has no USB3.0 since it didn't exsist years ago! So now I have two 3.0 ports to use with my various 2.0 and 3.0 flashdrives and external hdd's. I dont use nor do I care about benchmarking software for data read/write speeds. If it's faster then the 2.0 speeds I've been used to since 2.0 came out then SO WHAT!!! My 1tb WD "my passport" works just fine with this add-in card. So does a kingston 120gb ssd that's inside the external case this card came bundled with. The PCI-e port powers whatever I've plugged into this thing. My 2tb 3.5" externals work just fine too, albiet they have their own power source. Only issue I has was that Win7(64bit) actually took around 2 minutes to read the mini disc the drivers are on, and then another 2 minutes to install the drivers. XP loaded them up in seconds and I was testing this out on XP a minute later. I dual boot XP and Win7 off of two seperate hdd's, Win7 being on an SSD......odd that Win7 took so long to install the drivers. Hey, it works at usb 3.0 speeds, it's beyond faster then 2.0, how can you seriously complain about this card at it's price point?

Pros: Plugged it in, rebooted and it was there (Ubuntu 12.04). Cheap ADATA USB 3.0 drive Read ~78MBs sec, Write 35MBs. sross@sross-desktop:~$ sudo hdparm -tT /dev/sdd [sudo] password for sross: /dev/sdd: Timing cached reads: 7278 MB in 2.00 seconds = 3644.27 MB/sec Timing buffered disk reads: 276 MB in 3.01 seconds = 91.72 MB/sec I'll have to get a faster USB 3.0 drive to test further, pretty sure the drive is the limiting factor right now.

Cons: None so far

Overall Review: Need to buy a faster drive to see how fast it truly works. Haven't tested it on Windows yet.

Pros: Price

Cons: Does not stay in superspeed, switching USB 3.0 device speed between superspeed and highspeed. Seems to be temperature related. Tried different driver, the one come with the CD, one download from the manufacture SYBA website and the latest version from the Etron website, result the same. I am using windows XP SP3, tried with BlacX 5G docking bay, and Image 500G USB3.0 hard drive When it works at superspeed, it is fast, but it may drop the speed to fullspeed any time, and your file copy time will increase from 10s of seconds to couple minutes, and it keeps doing that

Overall Review: Spend more money buy a good brand, Or you can try your luck on this one.

Pros: Works as described. Windows 7. Fast delivery

Cons: none