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StarTech.com 2 Port PCI Express SuperSpeed USB 3.0 Card Adapter PEXUSB3S2

3.8 out of 5 stars 79 customer reviews

Price: $44.76 & FREE Shipping
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  • SuperSpeed USB 3.0 connectivity at up to 5 Gbps and 80% more power than USB 2.0
  • Dual profile design to fit into Full or Low Profile/small form factor (SFF) systems
  • Backed by a StarTech.com lifetime warranty and free lifetime technical support
  • Provides two external USB 3.0 connections
  • Fully compliant with USB 3.0 revision 1.0 specifications and Intel xHCI rev0.96 specifications, with transfer rates up to 5 Gbps
  • Built-in optional LP4 Molex power connector for bus-powered USB devices
  • Backwards compatible with USB 2.0 and USB 1.0/1.1 devices
  • Optionally provides up to 900mA per USB port
6 new from $39.99 1 used from $30.00

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Frequently Bought Together

  • StarTech.com 2 Port PCI Express SuperSpeed USB 3.0 Card Adapter PEXUSB3S2
  • +
  • StarTech.com 2-Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP (PEXUSB3S25)
Total price: $76.93
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Technical Details

  • Brand Name: StarTech
  • Model Number: PEXUSB3S2
  • Item Package Quantity: 1
  • Item Display Weight: 60 grams
  • Manufacturer Warranty Description: Lifetime warranty

Product Description

Add 2 USB 3.0 ports to your desktop computer through a PCI Express expansion slotProviding speeds up to 10x faster than that of USB 2.0, this PCI Express USB 3.0 card enables you to access your data and transfer files much faster than USB 2.0, by adding two USB 3.0 ports to your PCI Express capable PC.Featuring a native NEC PCI Express host controller chipset, the new USB 3.0 standard supports transfer rates of up to 5Gbps, while still providing connectivity and support for the older USB 2.0 (480Mbps) and 1.1 (12Mbps) devices.In addition to providing a much faster transfer rate the PEXUSB3S2 USB 3.0 card also supplies 900mA of power per USB port, allowing more and more external devices to operate without the need of an additional power source.

Product Information

Product Dimensions 3 x 4.8 x 0.8 inches
Item Weight 0.3 ounces
Shipping Weight 0.3 ounces (View shipping rates and policies)
ASIN B002XVVIQE
Item model number PEXUSB3S2
Customer Reviews
3.8 out of 5 stars 79 customer reviews

3.8 out of 5 stars
Best Sellers Rank #7,505 in Electronics > Computers & Accessories > Laptop Accessories > Chargers & Adapters
#14,213 in Electronics > Computers & Accessories > Computer Components
#65,907 in Electronics > Accessories & Supplies > Computer Accessories
Date first available at Amazon.com February 28, 2012

Warranty & Support

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

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
PROS

The box included a molex to SATA adapter (which I needed)
The box also contained two different kind of bay ports - helpful
Getting the card situated in my Dell Studio XPS 9100 was easy (in the back, not front)

CONS

The manual that comes with it is a complete waste of time
The CD did not autorun and I could not locate the proper file on it to run

AND you CAN get around this by going to: (I posted the link, but Amazon stripped it: go to the startech website and click on support, click on product manuals and driver downloads,
then plug in the model name: pexusb3s2 you'll see three files download the manual and the driver.)

I downloaded both the manual which is better than the one in the box and the driver which is more expedient and is updated.

So - I was able to install it and it is working fine, though it required patience. I'm glad I have a bit of a background in this. If you've never installed a
card before, you might feel totally lost.

As for the seller: the product arrived with the speed of lightning (well, almost) and in good shape
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Verified Purchase
My StarTech.com 2 Port PCI Express SuperSpeed USB 3.0 Card Adapter (PEXUSB3S2) review:

With the exception of the instruction manual not specifying exactly which folder on the CD contained the "setup.exe" file for this product I have no complaints with the installation or performance of this USB 3.0 card adapter. The file is located at
\PCIe\NEC uPD720200\setup.exe on the CD and is the same version as the one on their website.

The file transfer speed from my internal hard drive to the external 3TB Western Digital drive (purchased at Costco on sale for $109.99) was about 105 Megabytes/sec - much faster than the same drive plugged into the motherboard's USB 2.0 port. The USB 3.0 port speed matched that of transfering files between two internal SATA drives.

Because all of my computer's SATA power supply connectors were being used (three internal hard drives and two Blu-Ray drives) I had to buy a six dollar SATA power supply "Y" (splitter) cable assembly to connect with the supplied power cable of the USB 3.0 card adapter but if you have a spare SATA power connector in your computer you will not have to buy anything beyond what comes in the box.

Once you install the driver the Windows 7 device manager should show "Renesas Electronics USB 3.0 Host Controller" and "Renesas Electronics USB 3.0 Root Hub" under the "Universal Serial Bus controllers" section.

I highly recommend this product!
-------------------------------------------------

UPDATE: December 2, 2011

So far no problems with this product. I did want to add that the data transfer rate will depend on if you are transferring one huge file (as in my test results mentioned above) or transferring hundreds of little files.
Read more ›
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Verified Purchase
Works in a Mac Pro running Lion if you are tech savvy.

For $30 I decided to take the risk and see if I could get this to work in my 2006 Mac Pro. Had to do some digging on the net to find some hacked drivers but they are out there. Using a Seagate GoFlex 3TB USB 3 drive I'm getting 96 MB/s write and 115 MB/s read speeds.
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Verified Purchase
Easily physically installed in desktop but first attempt at driver installation appeared to work but did not. After uninstalling and re-installing the same driver, it worked fine and has continued to do so ever since.
Also, due to poor information from the manufacturer's customer service area, I wasted a few dollars buying a Sata to LP4 Pin Power adapter that was not needed. Prior to purchasing this unit, I contatce the the manufacturer's customer service area to ask about comatability with my computer, etc. During that conversation, I was told that the unit did not come with the Sata to LP4 adapter I would need, even though the description said one was included in the package. Thus, I bought a separate adapter along with this unit. When both were received in the same shipping carton, the package for this unit did, in fact, contain an equivalent functioning adapter with 6" connectors.
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By JP on March 26, 2013
Verified Purchase
It's been a couple months since I installed this on a Windows 7 computer. Initially there was a minor glitch upon booting up. The computer took forever to boot up and load my desktop. The desktop also looked unusual. My wallpaper was different and icon size was different, among a few of things I remember. After rebooting everything went back to normal. Performance is notably faster with my external hard drive. One thing that is annoying is that it sometimes loses its connection, and I have to reboot the computer. It doesn't matter what device is connected, so I know it's the card and not the device.
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Verified Purchase
I got this to update my Intel SS4200E with USB 3.0 support. I added swapped out the low-profile header, detached the serial connector, drilled some holes in the header so I could attach the face in the serial port opening and connected this with a pci express 1x riser cable. It's sturdy and fits perfect without obstructing anything. Using the onboard molex power cable. Connected this to a Syba USB 3.0 hub [...] and 4 2TB Seagate Expansion USB 3.0 drives. Now I have 12TB's of space, 2gb of RAM and a C2Duo E4600. Works great on Windows 2008 Server R2. Using Wild Media Server to stream 1080p mkv files to a Sony 55EX710. I have a Netgear DUO V2 with the same NEC USB 3.0 controller on board but with antiquated xhci_hcd drivers and performance is much better with this. Getting up to 90MB/s. Averaging 60MB/s rw.

This card is a great way to upgrade to USB 3.0.
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