OWC Mercury AccelsiorM PCIe mSATA Controller Review


The SSD Review uses benchmark software called PCMark Vantage x64 HDD Suite to create testing scenarios that might be used in the typical user experience. There are eight tests in all and the tests performed record the speed of data movement in MB/s to which they are then given a numerical score after all of the tests are complete. The simulations are as follows:

  • Windows Defender In Use
  • Streaming Data from storage in games such as Alan Wake which allows for massive worlds and riveting non-stop action
  • Importing digital photos into Windows Photo Gallery
  • Starting the Vista Operating System
  • Home Video editing with Movie Maker which can be very time consuming
  • Media Center which can handle video recording, time shifting and streaming from Windows media center to an extender such as XBox
  • Cataloging a music library
  • Starting applications


The ADATA XPG SX300 SSD pulled through Vantage testing with a Total Score of 71136 points while the same SSD in the AccelsiorM recorded a score of 52005 points with a high transfer speed of 312MB/s which is very encouraging.  Vantage Testing confirms that, in typical user activities, this controller card is capable of speeds in the SATA 3 range.


The only thing I would have liked to seen and can comment on as a bit of a negative with the OWC Mercury AccelsiorM mSATA Controller Card is the fact that I would love to have seen this card spitting out top SATA 3 performance benchmarks.  This would have enabled its use with all future mSATA SSD evaluations without having to disconnect one of my data cables from the two Intel ports.

On the other hand, there are so many ways one just can’t go wrong with this card, starting with the original concept of a mSATA SSD adapter and following through to its price model.  The OWC Mercury AccelsiorM is the worlds first fully bootable PC and Mac mSATA Controller card and it is a plug and play device.  There are no drivers or settings required for it to do it’s job from the get-go. To then make it available for the price of $33.97, this just may become a must have for anyone that works with mSATA SSDs or finds that great deal on one.


At the end of the day, the OWC Mercury AccelsiorM PCIe mSATA Controller Card is a fully bootable solution, available for both PC and Mac, is plug and play and requires no driver installation or system settings to be changed, is SATA 3 capable and comes in at under $35.  It is deserving of our Innovation Award.  Great work once again OWC!


User Rating: Be the first one !


  1. blank

    Can you RAID two of these cards on an ICH10 chipset?

  2. blank

    very interesting solution but it would be nice to see this with 2 or more msata
    +1 Inovation

  3. blank

    I would love to see a “Professional” or “Enthusiast” version that utilizes a PCIe x4 or even x8 slot, and has space for 2-4 mSATA SSD’s and uses an actual LSI hardware RAID chip and a nice and round 1024MB of DDR3 cache to RAID0/1/5/10 the drives, and maybe even a small integrated Battery Backup for use during power failures (enough to keep the drives holding data for 48-72hrs shouldn’t be expensive nor take up hardly any room).

    Can you imagine a 4x256GB RAID-0 array capable of 2GB/s reads/writes, and the entire thing is smaller than a sound card??? OH WHAT I WOULD GIVE!

  4. blank

    BEWARE! Installing the AccelsiorM with a 256GB mSATA card in my Mac Pro has screwed up native boot into the separate Mac Bootcamp partition (Bay2 Drive). The screen gets as far as “Using PCIE Gen 2” but no further.

    The card is fine running MACOS (boot time under 12 seconds) but won’t boot via the Option key into Win7 on start up. Anyone got any suggestions?

Leave a Reply

Your email address will not be published. Required fields are marked *