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Vantec > 
Item#: N82E16815287014

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
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Learn more about the Vantec UGT-ST420R

Model

Brand
VANTEC
Model
UGT-ST420R

Spec

Type
PCI Express to SATA Card
Internal Ports
2 x SATA II
Data Transfer Rate
3.0 Gbps

Manufacturer Warranty

Parts
2 years limited
Labor
2 years limited

Quick Info

Warranty

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


Customer Reviews of the Vantec UGT-ST420R

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  • 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.

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  • 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

  • Matthew 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

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  • Nicholas 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

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Vantec > 
Item#: N82E16815287014
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