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Item#: N82E16816132045

Rosewill RC-229U4 PCI-Express 2.0 x1 USB 3.0 Controller Card

  • 4 x USB3.0 External Connectors
  • Up to 20Gb/s (5Gb/s per port)
  • Hot-Swap and Hot-Plug
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Learn more about the Rosewill RC-229U4




USB 3.0
External Connectors
4 x USB3.0
PCI-Express 2.0 x1
Transfer Rate
Up to 5Gb/s per port
Operating Systems Supported
Windows 8, 7, Vista, XP and Linux


Ti Chipset

Supports PCIe 1.0 and PCIe 2.0 motherboard

Supports up to 4 external USB3.0 Devices
- Optimized for external USB SSDs, hard drives, drive enclosures, and USB3.0 Flash Drives

Supports Max 1.5A USB 5V bus power per USB 3.0 port

Backwards compatible with USB 2.0 & 1.1

Compliant Intel eXtensible Host Controller Interface (xHCI) Specification 0.96

Hot-Swap and Hot-Plug

Support Standard 4-pin Molex 8981 power connector or 15pin SATA power connector

Supports 64bit and 32bit Windows 8, Windows 7, Vista, XP, and Linux kernel 2.6.31 or later

RoHS Compliant


Package Contents
1x RC-229U4 PCI-Express 2.0 x1 USB3.0 Controller Card
1x Driver CD
1x SATA Power Converter Cable (SATA 15pin Female to Molex 4pin Female)

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Rosewill RC-229U4

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  • Brian A.
  • 7/6/2014 5:59:49 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsUSB3 Solved

Pros: It works. Just follow the setup steps in order or: do it over.

Cons: Still looking for the zUSB3 slot card with a cable and hub out where it can be accessed. When o' when?

Did you find this review helpful? Yes No

  • David T.
  • 2/12/2014 7:38:02 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsWorks fine IF you use their driver

Pros: Ran well when installing on a Windows 8.0 desktop and letting the OS find and install it. Upgraded to Windows 8.1 and the drives would disappear and there was some sort of conflict in the device manager between a "uhxi driver" and a "Texas Instruments Extensible...(0096) driver". I downloaded and install the drivers from the Rosewill site, which didn't include Windows 8 in the list, and the drives and card have been running fine ever since.

Cons: Needed an extra power cable to reach all the way to where my Dell desktop's other end was.

Other Thoughts: Do yourself a favor and download the latest drivers from Rosewill, especially if you are running Windows 8.1.

3 out of 3 people found this review helpful. Did you? Yes No

  • Neil K.
  • 12/18/2013 6:13:03 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsDoes what it is supposed to do

Pros: Easy to install. No Windows 8 drivers needed. Put into PCI-Express slot, closed case and booted up. All is well.

Cons: None

0 out of 1 people found this review helpful. Did you? Yes No

  • Robert W.
  • 11/24/2013 10:59:36 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsRosewill RC-229U4 PCI-Express 2.0 x1 USB 3.0 Controller Card

Pros: No problem installing in PC. Works fine with driver per enclosed CD, but not with generic driver loaded by Microsoft.

Cons: Learning how to install driver could be easier. Had it not been for green card included with CD I would not have figured it out.

Did you find this review helpful? Yes No

5 out of 5 eggsVery capable USB controller

Pros: Inexpensive solution for older systems without (or newer systems without enough) USB 3.0 ports.

Fast! Almost as fast as the integrated onboard USB on a higher-end motherboard (see "Other thoughts" below for actual tests.)

Utilizes a Texas Instruments chipset, not a no-name knockoff import.

Constructed with higher-quality 105°C capacitors.

Hardware is easily installed by anyone who's ever worked inside a PC case in the last ten years.

Recognized and installed automatically by Win 7 x64, for other Windows operating systems there is an included driver CD, be sure to check the (admittedly sparse) installation instructions for the correct file path.

Includes a Molex -> SATA power adapter for older PSUs, or those without enough SATA connectors.

Well-packaged for shipping, should avoid damage from all but the most determined freight handlers.

Cons: Very little documentation included, only basic installation instructions, which are, albeit, adequate.

Box is very confusingly mislabeled "Server HDD Controller / RAID Card Solution." This product is neither, and at first I was not even sure what product I was supposed to be reviewing. Stick-on labels applied over the erroneous text would have been a very cheap and effective solution to this.

Other Thoughts: Test of the Rosewill PCIe card vs. an integrated Etron Technology chipset.
USB Test Device: 128GB Corsair flash drive:

CrystalDiskMark 3.0.2 x64 (C) 2007-2013 hiyohiyo

Onboard USB 3.0
Sequential Read : 134.342 MB/s
Sequential Write : 35.922 MB/s

Rosewill RC-229U4
Sequential Read : 131.565 MB/s
Sequential Write : 33.760 MB/s

Test : 4000 MB [H: 0.0% (0.0/115.1 GB)] (x3)
OS : Windows 7 Home Premium Edition SP1 [6.1 Build 7601] (x64)

No doubt the top speed of both USB interfaces was limited by the flash drive itself, but you can see only a minor difference in performance between the two. This test was not intended to gauge the upper-speed of this PCIe card, only to compare it to an integrated USB 3.0 PC setup.

Device longevity remains to be seen, but the PCB and components all appear to be of good quality and design.

Despite the lack of any detailed documentation and grossly mislabeled box, I could not define any other issues which would warrant the loss of any Eggs.

4 out of 6 people found this review helpful. Did you? Yes No

  • Barty B.
  • 10/28/2013 1:10:51 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat product

Pros: Fast, cut the backup time to my USB3.0 External HD, that had been connected to a 2.0 USB port, from 31 minutes to 8 minutes! I was also having issues with the system not recognizing one of my external drives while powered from a 2.0 powered hub; after attaching to this new 3.0 Port, it works perfectly. Easy to install.

Cons: Didn't find any cons!

Other Thoughts: Window XP was having boot issues prior to the installation of this USB 3.0 card. I think part of the problem was that one of my USB external HD wasn't getting enough power from the 2.0 hub and that was confusing the system. Those boot problems went away as soon as I installed this card!

1 out of 1 people found this review helpful. Did you? Yes No

  • James B.
  • 10/24/2013 7:04:40 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsJust what I needed

Pros: 4 usb 3.0 ports with power. Exactly what I needed.

Cons: None

Other Thoughts: Super fast shipping and easy installation.

Did you find this review helpful? Yes No

5 out of 5 eggsnever got it to work

Pros: im not knocking any eggs for this.
i may have got a dud.
so i cant say much about the card. other than newegg is great..been a customer for many years.this is the first thing i got that was defective. no need to return as it was a review product.

Cons: defective unit

0 out of 3 people found this review helpful. Did you? Yes No

5 out of 5 eggsGreat Product.

Pros: MY Windows 7 64bit professional found drivers for it immediately. it also came with a driver disk. The Driver disk i received is a standard CD. and not a dvd. which is good news for those without a DVD rom drive. also it includes drivers for multiple rosewill products.. 29 products to be exact.
If you need a driver to use the card, The driver you will need is located in a folder titled, USB3.0 Host. then there is a subfolder titled TI. inside that folder you will find a Setup.exe. that is what you need to run.
This card will work with newer versions of linux, kernel 3.0.4 or newer, all your modern windows versions, even XP.
I am impressed to find that i am unable to max out the data transfer rate of the card.
all four of my WD My Passport external drives can read and write at maximum speed at the same time. the additional molex to sata power adapter was not necessary to have four usb powered external hardrives working at the same time.

Cons: would of been nice to get better documentation with the card. perhaps some paperwork with detailed specifications on the cards limitations..
even though i was able to use all 4 ports with usb3.0 external drives at the same time without problems, I still don't know what the power limitations are without the included power connector, which would be nice to know.

Other Thoughts: I do not think they are lying when they say this card is rated at 5Gb/s per port..
be aware that there is a difference between b. and B. in the speed ratings.
a lowercase letter "b" stands for bits.
a uppercase letter "B" stands for bytes.
there is 8 bits in a byte. so 5000mb/8 = 625MB/s
625MB/s is fast as hell! i dont have any devices which can even come close to approaching those kinds of speeds except for my SATA SSD drive. which is only around 550MB/s
so i cant validate weather it can actually perform at the maximum speed as described.
however i was able to copy files off of each of my external drives onto other drives and get near 440MB/s flowing through the card at the same time. there was not any problems. it did not even require the extra power cable. the bottleneck was the limitations of the external drives and not the card. each of my WD My Passport drives has a maximum read speed of 109.8MB/s
the box is listed as a Sever HDD Controller Card. perhaps someone was confused by the included the sata power connector?. or perhaps rosewill simply has a abundance of these boxes left over from other products. its not a problem. but don't be shocked when it arrives and assume they sent you the wrong item.

Overall this is a great card, it works well. there really is not much room for improvement. perhaps a internal plug for front panel usb 3.0 connector cables.

1 out of 1 people found this review helpful. Did you? Yes No

4 out of 5 eggsFast and simple way to add 4 high-speed USB 3.0 ports to your desktop

Pros: With its tiny PCB that will fit in a PCIe x1 expansion slot (note: this will also work in a PCIe x4, x8, and x16 slot as well), this well-made USB 3.0 controller card gives your desktop computer 4 external high-speed USB 3.0 ports.

Don't be put off by the name Rosewill, this USB 3.0 controller card is running the Texas Instruments TUSB7340 host controller, a very capable and well-built host controller. Overall build quality and components are robust and well-manufactured.

The controller card merely plugs into an open PCIe slot and is powered internally via a free SATA power connection from your PSU. Rosewill also includes a Molex to SATA power adapter in order to use a free Molex connection off your PSU.

Operating system support is literally plug-and-play with 32-bit and 64-bit versions of Windows XP, Vista, 7, and 8. If native OS drivers are not installed by the OS a driver CD is provided and provides an easy to follow installation tool. Documentation for install recommends to cancel the automatic install of drivers within Windows, but this is not needed if native OS drivers are used (which is the case with Windows 7 and 8).

This controller card will work with any Linux distro that uses kernel 3.0.4 or newer. Since kernel 3.0.4 was released in August 2012, any modern and well-known distro will work. Kernel 3.0.4 incorporated xHCI support natively, which is the interface specification that USB 3.0 devices are built around. Obscure Linux distros with unknown kernel versions or outdated kernel versions will not support this controller card.

In my testing this controller card was recognized and successfully working in the latest stable releases of Ubuntu, Fedora, and FreeBSD. I also tested on a Windows 7 machine and Windows XP machine with complete success. Also, this controller card was recognized and working across the above operating systems within virtual machines as well.

Rosewill also provides a nice l year warranty on this controller card.

Cons: The documentation provided in the box is very limited - literally just a single-sided piece of paper with little text. More troubling is that controller card is advertised here, and on the Rosewill website, as supporting Linux kernels 2.6.31 and above. This is simply incorrect. The Texas Instruments TUSB7340 only works with kernels 3.0.4 and above - this is documented in the engineering specifications directly from Texas Instruments. This warrants, in my opinion, the deduction of an egg due to such an obvious error that can be openly researched directly from the chipset manufacturer.

Other Thoughts: Host power for each port is the standard 1.5 amps per the xHCI specification. This controller card is also backwards compatible with USB 1.0 and USB 2.0 devices. Packaging is minimal and the controller card itself is well-packed and protected in an anti-static bubble wrap sleeve. The included Molex to SATA power adapter is the standard 6 inch adapter found anywhere else.

If you're in need of an additional 4 USB 3.0 ports, or want to add USB 3.0 connectivity to a computer that doesn't have it, this 4-port controller card from Rosewill is a great option. Its small form factor, ease of installation, and great price makes it a sound competitor in this marketplace. You will not be disappointed with this purchase!

5 out of 6 people found this review helpful. Did you? Yes No

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Item#: N82E16816132045
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