Skip to: | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

  • Wish List
  • Feedback
  • Help
Search all
Home > 
Computer Hardware > 
Computer Accessories > 
Add-On Cards > 
Vantec > 
Item#: 9SIA0ZX2C39537

VANTEC 2-Port SATA II 300 PCIe Host Card w/RAID Model UGT-ST420R

  • PCI Express to SATA Card
  • 3.0 Gbps Data Transfer Rate
  • Email this page
ICON Loading...

Learn more about the Vantec UGT-ST420R




PCI Express to SATA Card
Internal Ports
Data Transfer Rate
3.0 Gbps

Manufacturer Warranty

2 years limited
2 years limited

Quick Info


  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years

Customer Reviews of the Vantec UGT-ST420R

Do you own this product? Write a Review

ICON Loading...

Filter Results

  • Alexey B.
  • 11/30/2014 7:53:30 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week

5 out of 5 eggsWorks on older system

Pros: Works where other failed. Silicon Image chipset seems to have better compatibility than Marvel I tried before (failed even to boot to BIOS).

Cons: Somewhat slow.
Samsung magician does not recognize the SSD.
Seatools for windows also fail to find the drive.

Other Thoughts: I wanted to add 4 Tb drive to my older system and sure enough nForce chipset failed to see anything above 2Tb.
This card was a solution. Got recognized by BIOS at once. Bootable. Vista found new drivers.
It is kind off slow (plugged it in 4x slot), so I argue whether I should keep my boot drive on it

Did you find this review helpful? Yes No

  • Daniel S.
  • 6/26/2014 3:03:10 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsReally small card that JUST WORKS

Pros: It installs easily and does what it's supposed to do.

Cons: Limited by your motherboard speed, IDE only

Other Thoughts: Key points: IDE, bootable, Windows XP supported, RAID capable, works well with ASUS motherboards that often contain Marvel chipsets.

If you want to additional IDE SATA ports to a new or already installed Windows XP system AND be able to BOOT from it, this IS YOUR CARD. It will probably work well in other versions of Windows too, but my requirement was for XP.

My goal was to add a card to my system in IDE mode and NOT have to perform the Registry tricks to put Windows XP into AHCI mode.

The controller does appear in the BIOS load sequence and allows you to configure (via F2) a software RAID. Skip this if you are just adding SATA ports. Drives show up in the Boot Order so you can select them. THIS CARD IS BOOTABLE.

Once loaded, Windows XP detects it and asks for drivers. You can use the ones on the CD or go trolling for more up-to-date ones. Once the drivers are loaded and you re-boot, Windows XP sees this as a RAID card, but you can simply use both ports for additional SATA ports if you wish.

Installed in a PCIe 2.0 x16 slot, this device produced SATA 11 speeds, but I did NOT have any SATA III drives to test it with, so I cannot comment on this.

Five Eggs because Newegg got it here fast and because it worked just like it was supposed to.

Did you find this review helpful? Yes No

  • Robert N.
  • 4/11/2014 12:02:40 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

3 out of 5 eggsWorks good but misleading speed

Pros: Works good in linux with the native kernel driver.
The Silicon chip does not conflict with the Marvell chipset that is already included on my motherboard. I've heard of conflicts arising when having more than one Marvell chipset in the system, that's why I went with this card.

Cons: This card doesn't work at SATA 300 speeds,
It sets up a SATA 300 link with my two SSDs but the transfers are hard capped at 125MB/s for each port.
The transfer speed doesn't change whether i plug in one or two SSDs.
Switching to the native Intel SATA 300 port or the Marvell one on the same motherboard gets me ~250MB/s.
I suspect this is due to the fact that the Silicon chipset is a Pci express 1.0 device and is capped at 2.5Gb/s even though its sitting in a Pcie 2.0 slot that's capable of 5.0Gb/s.
Looks like each port on this card is hard capped at half of pcie 1.0 bandwidth :/
Interesting fact that I discovered while troubleshooting the speed on this thing:
If I plug this card into the the x16 slot on my motherboard that is meant for a GPU, the transfer speeds improve to ~165MB/s. My suspicion is that the x16 lines coming from the CPU are faster that the ones coming from the chipset even though they are both "officially" pcie 2.0. I`m probably wrong but its something I discovered on my ASUS P8P67LE motherboard with an Celeron G1610.

Did you find this review helpful? Yes No

  • Omar M.
  • 2/24/2014 11:50:54 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week

3 out of 5 eggsNot AHCI Compatible

Pros: Simple and easy. Works with ASUS board.

Cons: Not compatible with AHCI - need to switch MOBO to IDE for this to behave with the other things in your PC.

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

  • Matt S.
  • 3/2/2013 9:09:35 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNice Card

Pros: Compact little card. Works great. Nice RAID speeds.

Cons: My board has now basically rejected all PCIe x1 cards, so I cannot use it. T_T

Did you find this review helpful? Yes No

  • Nick A.
  • 6/4/2012 2:43:16 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorks As Described

Pros: Needed and extra SATA port since I am still rocking an IDE DVD ROM and didn't have enough ports on my mobo to use a SATA converter. Now I do. Yay.

Cons: None

Other Thoughts: It gets the job done. What else do you want from this thing anyways?

Did you find this review helpful? Yes No

  • Benjamin C.
  • 4/3/2012 6:54:43 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsExtra Sata ports

Pros: Needed extra SATA ports for my computer so i could add a Blu-ray drive to my computer. Plus it uses the PCIe X1 slot that really doesn't have too many uses.

Cons: don't know yet.

Other Thoughts: I haven't had a chance to use it yet but i will update my review later once i do.

0 out of 7 people found this review helpful. Did you? Yes No

  • Brandon C.
  • 8/8/2011 6:59:34 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week

5 out of 5 eggsGreat for hot-plugging

Pros: This card has a Silicon Image Sil3132 chipset. I know the previous reviewer sees this as a con, but it is great when it comes to hot-plugging hard drives without having to do anything fancy.

Cons: Look elsewhere for performance (probably why the previous reviewer saw it as a con)

Other Thoughts: Brand name of the card itself is irrelevant. It's the chipset that counts. If you're connecting any kind of removable drive bay to this card, Silicon Image chipsets are the way to go, as JMicron chipsets tend to blue-screen Windows OS's (even with AHCI enabled) and Marvell's are hit-and-miss.

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

  • leonard m.
  • 3/16/2011 6:11:31 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsSiL 3132 chipset

Pros: none

Cons: Had I known this had a SiL 3132 chipset I never would have bought it. Same problems with my Asus motherboard as the cheaper SiL 3132 cards being sold here.

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

Compare Offers from All Sellers

Seller Name & Rating Offer Details  
ICON Loading...

More Buying Options

  • Newegg
    • $21.99



Are you an E-Blast Insider? Subscribe Newegg e-Blast
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.

Home > 
Computer Hardware > 
Computer Accessories > 
Add-On Cards > 
Vantec > 
Item#: 9SIA0ZX2C39537
Related Products
Two 6.0 Gbps SATA III ports on PCI ...
PCI Express to USB Card USB 3.0 Up ...
PCI Express to SATA Card 6.0 Gbps Data ...
Model Brand VANTEC Model UGT ST220R Spec Type ...
Shop by Region: United States | Canada | China | Taiwan
VeriSign Click for the BBB Business Review of this Computers - Supplies & Parts in Whittier CAThis site protected by Trustwave's Trusted Commerce program Inc500
Policy & Agreement | Privacy Policy  © 2000-2015 Newegg Inc.  All rights reserved.
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.