The device does not work well with the drivers provided. The tech support directs you to a website, where their latest drivers are listed: from 2009 (!) At the time of this review, it is almost April of 2011. Yes, it is hard to believe - but they only support a driver that is two years old. I contacted their tech support via chat - and they said the new drivers (which I found myself on the web from other sites) were "not supported". When I probed further they simply disconnected the chat - Twice! (These guys are the exactly opposite of good customer-service.) I took a leap of faith & installed the latest NEC drivers anyway and the device working so far. That's the only reason I venture a second star: Despite the headache and the lack of support - I've got it working, no thanks to startech. Suggest this USB 3.0 interface only people comfortable with PC technology & troubleshooting. StarTech.com 2 Port PCI Express SuperSpeed USB 3.0 Card Adapter (PEXUSB3S2)
On my windows 7 32bit, I normally see about 20MB/s transfer rate on my USB 2.0 to external hard drive. This card is doing just a bit better around 28MB/s. Windows 7 did not recognize the card, and the Driver came with CD did not work! Had to download driver from startech.com. I then tested with USB 3.0 external hard drive, and the speed started out at 65MBs but then dropping down to about 28MB/s. It can't sustain USB 3.0 transfer rate. Going to return and try something else.
This card alowed me to go from about 20/Mbs to 60/Mbs (plus) using my Seagate Goflex desktop 2 TB hard drive, and using the USB-3.0software that came with the card, plan to try out the Segate USB-3.0 software and see if there is any differences +/-. A nice boost though and helpful. I've hit 120/Mbs but not for prolonged spans though. Most likely the 64Meg Cache, but that helps for the over all performance.
Price was a great consideration in getting this card, it is easy on the pocket, infact the best price I found at the time... @ Amazon.com, and am well pleased.'
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