Micron RealSSD C400 128GB mSATA SSD Review – Performance and Capacity At Under 10 Grams


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

If you are new to testing and considering benchmark software, this is the best you can get because the program goes well beyond the results of simulated testing as we have already done. In comparing SATA 2.0 SSDs, we have reached the bandwidth limit and the performance of most new SATA 2 SSDs is as high as it can get with typical high sequential access speeds in the area of 280MB/s read and 270MB/s write.


We needed a way to differentiate these drives and to find a method that can actually put one drive above another and this is exactly what Vantage testing does. Its tests combined can provide an accurate comparison between drives and its tests individually can assist a smart shopper in finding the best SSD for their needs. Next to actual true to life testing which can take an insurmountable length of time, PCMark Vantage is the only program that can compare any SSD, side by side, regardless of SATA interface or controller in use.


The Total Point Score for the Micron C400 was an unbelievable 66641 points which, not only blew away the other two SATA 3 SSDs in their category but also, placed the C400 amongst some of the top SSDs we have reviewed when looking at PCMark Vantage testing.  The strength in the results display that the C400 was able to show consistently high transfer speeds in the majority of simulated tests, this being somewhat unusual as most SSDs will exceed standards in one or two of the tests at most.blankOur SSD Hierarchy is based solely on Vantage Total Points and has grown somewhat since we first started seeing ‘new gen’ SATA 3 SSDs released.  We have highlighted the only three mSATA SSDs to make this chart:



  1. blank

    Great review and information! These are great but just like conventional hard drives with rotating media, they can still fail (in different ways), where backing up data is still necessary to prevent the need for data recovery in the future. There are even some cases where if some of the memory chips fail that the data may not even be recoverable. Aside from that they are not susceptible to movement (shock) like conventional hard drives, weigh less and tend to use less power which can make them an ideal choice for notebook computing.

  2. blank

    Where’s products with the new 88SS9187 controller that supports SATA 3.1?

    Why the old 88SS9174 controller?

  3. blank

    «128GB RAW total. Once formatted, the end user capacity is brought down a bit to 119GB.»

    This statement is based on ignoring that the manufacturer quoted capacity is in gigabytes (10 to 9th power) and the one reported by MS-Windows is in gibibytes (2 to the 30th power), and in fact 128 gigabytes is roughly the same capacity is 119 gibibytes, or 128,000,000,000 bytes.

    The raw capacity and the formatted capacity are reported to be the same 128GB=119GiB because the partitioning and formatting overheads are fairly small, that is well under 1.07GB=1.0GiB.

    • blank

      Same same different thread eheh. Lets be clear. This SSD contains 4 x 32GB modules for a raw total of 128 GB or gigabytes. Total available user capacity once it is formatted is119GB no matter how you cut it by trying to explain GB and GiB.

      The use of Gib and, quite frankly the technical explanation and calculations, is not used on any review site that I am aware of and has no use but to confuse the reader needlessly.

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