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StarTech.com 2 Port ExpressCard SuperSpeed USB 3.0 Card Adapter with UASP Support ECUSB3S2

3 out of 5 stars 49 customer reviews
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  • SuperSpeed USB 3.0 connectivity at up to 5Gbps on any ExpressCard enabled PC
  • Small form factor that fits in 34mm and 54mm ExpressCard slots for versatility and portability
  • Backed by a StarTech.com lifetime warranty and free lifetime technical support
  • Fully compliant with USB 3.0 rev 1.0 specifications and Intel xHCI rev 0.96 specifications, with transfer rates up to 5Gbps
  • Backwards compatible with USB 2.0 and 1.1/1.0 devices
  • Provides up to 900mA of power per port, with additional power adapter
  • Supports Control/Bulk/Interrupt/Isochronous USB transfer modes
  • Support for up to 127 USB devices per port (requires additional USB hubs)
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Technical Details

  • Brand Name: StarTech
  • Model Number: ECUSB3S2
  • Item Package Quantity: 1
  • Hardware Platform: Pc
  • Item Display Weight: 45 grams
› See more technical details

Product Information

Product Dimensions 1.3 x 4.5 x 0.8 inches
Item Weight 1.6 ounces
Shipping Weight 4 ounces
ASIN B002XW1YY4
Item model number ECUSB3S2
Customer Reviews
3 out of 5 stars 49 customer reviews

3 out of 5 stars
Best Sellers Rank #92 in Electronics > Computers & Accessories > Computer Components > I/O Port Cards > Serial Port Cards
Date first available at Amazon.com January 31, 2012

Technical Specification

Specification Sheet [pdf ]
User Manual [pdf ]

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers
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Customer Reviews

Top Customer Reviews

4.0 out of 5 starsStartech USB 3.0 Expresscard 34 Card
By gdouglas2501 on January 12, 2011
Verified Purchase
This is a two port super speed USB 3.0 Expresscard Card. The driver does not come with the product but is easily obtained from the Startech website. I downloaded the driver for 32 bit Windows 7 before the item arrived so that when the expresscard arrived I would just plug in and play. The expresscard did not recieve five stars because the expresscard DID NOT come with the external power adapter. The external power adapter is necessary for the expresscard to provide enough power for USB 3.0 powered devices. USB 2.0 devices work fine with the expresscard without using the external power adapter; I tested several printers, flash drives, ipods, USB 2.0 external powered hard drives, Evo 4G (including USB tethering function, disk drive function, and charge mode), and SDHC cards (using usb adapter) and they worked fine without using the external power adapter. The only real problem I have had with expresscard is when I plugged in my USB 3.0 Western Digital My Passport Essential (500 GB) hard drive (a portable hard drive that is powered entirely by USB port) and started a write operation the expresscard port would "eject" the expresscard. USB 3.0 ports are designed to provide 80% more power than USB 2.0. Thus when I tried to write to the My Passport Essential hard drive using the USB 3.0 ports on the expresscard, the device would attempt to draw the full power of a USB 3.0 port, which is greater than what the expresscard port could provide and therefore my computer would "eject" the expresscard. That problem is completely solved when the external power adapter is plugged into the expresscard. I was transferring data (180 GB+) from an USB 2.0 external hard drive to the USB 3.0 Western Digital My Passport Essential while using the USB 3.0 expresscard with the external power adapter the USB 3.Read more ›
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5.0 out of 5 starsGreat way to start your USB 3.0 experience
By Amazon Customer on October 25, 2010
Verified Purchase
I have had this product for nearly 8 months now and serves me well. I know some people have mentioned problems with the driver not being include but a quick visit to the website will take care of that (you can even install the driver right after you order it so that when it arrives you can just plug it in and go.) If you have Windows 7 (might be available as well on Vista, haven't checked) Microsoft put out a optional update in Windows Update to handle USB 3.0 drivers. Just click on it and install it, and that should work as well. I have had no problem or complaints with this device. Some have said it is flimsy but most expresscards are anything but sturdy, and its not going to fall apart under normal use or anything, just be aware of it if your moving your laptop around as you would if you had any kind of device dangling off the side of your computer like your flash drive, wireless mouse adapter, etc. and this will be a non-issue. A great product and now is an even better time to get it with more usb 3.0 items hitting the market. I give it the thumbs up!
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3.0 out of 5 starsFast but flimsy
By C. Metcalf on March 3, 2010
Verified Purchase
The USB 3.0 adapter defintely adds speed to USB 3 devices. But the driver for the card was not included on the enclosed CD and the USB connections on the card are very flimsy. I am afraid it will not last very long.
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3.0 out of 5 starsA bit disappointing and frustrating at first...
By Ben Blue on January 19, 2011
Verified Purchase
The disc that is enclosed is very confusing, if not worthless. I had to go to the StarTech.com website to download the latest driver. I have a 64-bit Satellite dual booted with Windows 7 Professional (x64) and XP Professional (x86). I only found one driver for this device. When I tried to load on Windows 7, it was installing into "Program Files (x86)," so I stopped the install and contacted StarTech via chat. I was told that the one on the website is the latest, and it works on both x64 and x86. The technician did not seem too well versed, as he admitted that he had no idea where the software installed. Anyway, driver installed in Windows 7 with no problem; however, in XP I had to tell the Hardware Installer to load driver from D:\Mos24Ser\winxp (note: change D to where XP Professional is installed on your system).

My next problem was a very loose ExpressCard/34 in my /54 slot. Very, very touchy! Seems that StarTech has a bracket to resolve this problem. (ECBRACKET). My personal (temporary) workaround is a carefully folded cardboard wedged beside the ExpressCard.

Then I tried to run my 500 Gig drive (housed in 3.0 Connected External Enclosure). I noticed a red led and a flashing blue one. The drive was constantly seeking.) I again contacted StarTech via chat AFTER waiting 25 minutes on the phone. This technician was on the verge of rude as he told me that I now needed to get an external power adapter "5V, 2000mah, Plug Type H, Center Tip Positive." When asked if StarTech had such an adapter, I was told "No." Having been a former Tech Support Engineer myself, I'd say that he's fortunate to not work for my boss. He implied that the problem was my fault for not studying the specifications. (OK, I should have, but that tech needs to learn diplomacy!)

So...Read more ›
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3.0 out of 5 starsWorks well but Drivers and Documentation are Lacking...
By BirdOPrey5 on November 23, 2010
Verified Purchase
I managed to get this installed in my Sony Vaio AR series laptop with Windows 7 64 bit Ultimate Edition, but in no thanks to the CD or documentation that came with this device. The "Instruction Manual" says to insert the CD and let it "Autoplay" or Run Setup.exe from the CD. Unfortunately there is no "Setup.exe" file anywhere on this disc. My CD is labeled "Driver CD ver. 73" so your results may vary. Anyway I manually looked for a driver and couldn't find one on the CD anywhere. I went to Device Manager, found the entry for this device which had no driver and clicked on "Update Driver" - Windows could not find a driver online nor did it find one after searching the Driver CD. Finally I found and downloaded the driver from Startech's website. The URL for the driver is:[...] This appears to be the same file for all Windows versions both 32 and 64 bit. After I ran the .exe file included in this .zip file Device Manager confirmed the card was properly installed.

Overall I really like the card and availability of 2 USB 3.0 ports. However the physical design of this card blocks my PC Card slot on this laptop so I can't use my Wireless Broadband Aircard at the same time. I knew this would be an issue when I saw the picture but had no real choice. Still it would have been better if they could have designed the card to not block nearby ports.

I read a review where someone called this "flimsy" - I have to say I don't agree- I haven't used it long and will update this review if something changes but it feels like a solid / well built card to me so far.

The reason for the 3 stars is the bad documentation/cd and the design that blocks other ports, otherwise everything else is 5 stars.
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Most Recent Customer Reviews

1.0 out of 5 starsHas never worked from day one crash my pc every ...

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Published 4 months ago by Brian
1.0 out of 5 starsTook a Chance and Lost

Disk provided, but none of the drivers were for this card. Downloaded drivers from StarTech site, but device was never recognized. Returned.

Published 5 months ago by router
5.0 out of 5 starsFive Stars

good product, quick delivery

Published 5 months ago by W. Haleen
4.0 out of 5 starsFour Stars

USB devices get jammed because the port is too tight. But it works very well.

Published 7 months ago by Mana' Oio'
4.0 out of 5 starsWell worth the $20 price of admission.

Well I transfer audio book files as a daily practice. The average book run about 680 mb to 1.2 gb. I always have a book in my ear. It brushs away the boredom. Read more

Published 9 months ago by Carol A. Anderson
1.0 out of 5 starsOne Star

Did not work, now matter what drivers I installed. Sent it back to seller and received a refund.

Published 10 months ago by Manuel
4.0 out of 5 starsSurprise!

I have to remember to unplug it before I close my PC. If I do`nt, my pc get problems to go down and stop. I have Sony Vaio with Wind 7.

Published 10 months ago by Øistein Darum
2.0 out of 5 starsTRANSFER SPEED IS GOOD.

Don't Have Anny Drivers For MAC OSX. WORK ONLY WITH WINDOWS.CONNECTION ARE TO CLOSE TO EACH OTHER NOT ABLE TO FIT 2 FLASH DRIVES. COSTRUTION IS NOT VERY STRONG. Read more

Published 15 months ago by DJ Hi-Fi
5.0 out of 5 starsFive Stars

Works as it should.

Published 16 months ago by Frank Billingham
1.0 out of 5 starsBad Device

o see if it would I just lost all that I had put it how I lost an HP Pavilion Laptop because because of this device. I won't write it again.

Published on October 2, 2013 by Fred Lyons

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