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Jus to give you some background info:

  • My Configuration: Core i7 920, Asus Rampage Extreme II, 6 GB G.Skill DDR3 1600 RAM, Kingstone HyperX 240 GB SSD
  • My motherboard only supports SATA II connections.
  • I purchased Kingstone HyperX SSD a few months ago. This drive is rated at around 500MB/s R/W
  • I was only getting speeds around 260 MB/s R/W through my mortherborads SATA II connection
  • Was looking for a controller card which was bootable, and could provide better speeds close to a SATA III connections

So after some research and playing around with a few controller cards, I finally purchased a SATA III controller card which is working like a charm for me !

Here is where I purchased this card:

It is only $15 dollars !

It is bootable, only adds a few seconds to the boot time and my SSD drive now hits 380MB/s at read and 350MB/s at write (way better than 260 MB/s R/W on a SATA II).

Here is some benchmarks I ran:


I am curious to hear your opinion since many of the users purchasing a controller card to get better speed did not get what they where looking for.

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I also came across a fairly new chip from Marvell.

Look up controller cards with Marvell 88SE9230. They employ PCI-E 2x v2.0 (which can transfer data as fast as 10Gb/s). This will result the card to fully support the SATA III speeds which is 6Gb/s max.

This one has the Marvell 88SE9230 on board :

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See the general discussion concerning "upstream bandwidth"

and comparing PCIe 1.0, PCIe 2.0 and PCIe 3.0 chipsets, here:

Also, our Presentation to the Storage Developer Conference

last year in Santa Clara, California, advocated 2 key improvements

to the next "SATA-IV" standard:

8 GHz transmission clock


128b/130b "jumbo frames"

Both are already implemented in the PCIe 3.0 specification:

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