Micron C400 256GB 6Gbps mSATA SSD Review – Crucial M4 mSATA SSD in Disguise

If there was one thing we wouldn’t have predicted, it was the rush of computer enthusiasts lining up to be the first to have what amounts to be the smallest and most powerful consumer storage medium available.

For the most part, we have Lenovo to thank for that as millions of Thinkpad owners played a key role in mSATA SSDs flying off the shelves quicker than they could restock.   Industry has responded well, however, as mSATA becomes the new ‘SSD Du Jours’ for the new ultra crowd.

Our report today is going to be our second of the Micron C400 family, the first being the C400 128GB capacity with today’s being what will soon be the industry standard ultrabook size of 256GB.  For those wondering about similarities between the Micron C400 and the newly released Crucial M4 SATA 3 SSD, they are twins.  Crucial handles the consumer side of things while Micron deals with the OEM and enterprise world; the sole difference between the two seems to be exterior branding sticker only.

Micron C400 in Renice mSATA to SATA 3 Adapter

The C400 is available in capacities of 32 and 64GB, for SSD caching applications, as well as 128 and 256GB where the sample we are reviewing today is the 256GB capacity.  Performance is increased with capacity and the 32GB version is capable of 440MB/s read and 50MB/s write with 55,000 IOPS, whereas the 256GB C400 tops out at 500MB/s read and 260MB/s write and 75,000 IOPS.

C400 MSATA COMPONENTS

The Micron C400 relies on the Marvel 88SS9174 controller with a Micron 256MB DDR3 cache module.  There are also four modules of Micron 25nm NAND flash memory of which each is 64GB in capacity for a RAW total of 256GB.

Once formatted, the total capacity available to the end user is reduced to 238GB.

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pcuser
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pcuser

The Mushkin Atlas SATA III mSATA SSD is still not reviewed here?????

Les@TheSSDReview
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Only found out yesterday that one is on its way…so it will be soon enough.

Letechson
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Letechson

Nice review. But what about power consumption ? I would like to put one msata in my dell laptop. Is there any big difference between the Crucial and the ADATA ?

Les@TheSSDReview
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Typically, we don’t address power consumption as it is not indicative of something the typical consumer concerns themselves with. See below for manufacturer listed specs:

C400 – 85/200mW
ADATA – .45/1.5W

Benn
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Benn

Could this be as good as having Samsung 830 256GB SSD? ( not mSata version )? I am thinking to use this with 7.2K RPM 750GB , but not sure if its worth using SSD or mSata SSd with HDD? Thanks

Les@TheSSDReview
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We have done the 830 Series 512GB notebook form factor review and it is here:

http://www.thessdreview.com/our-reviews/samsung-830-series-sata-3-512gb-ssd-review-amazing-performance-and-an-unbeatable-toolbox/

As for performance between the 2.5″ and mSATA, we had initially seen mSATAs with performance below notebook drives but that doesnt appear to be the case any longer.

Bill Gates
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Bill Gates

I have found that AS SSD transfer testing is not accurate. If you manually transfer a large file and I guarantee you the transfer rate is nowhere near what AS SSD shows.

Les@TheSSDReview
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Thanks Bill but we find it’s results to be consistent, not only in this analysis but also, in every analysis we have done and used it on the site.

Josh
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Josh

umm…pretty sure Bill Gates doesn’t know how to use a computer

canthearu
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canthearu

You need to turn off your virus scanner. On access virus scanning really hurts transfer performance of fast SSDs. The reason why AS SSD doesn’t show this degradation is that AS SSD writes to a pre-created file and is not reading from another drive, so the virus scanner isn’t triggered.

Bill Gates
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Bill Gates

I dont run AV

Josh
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Josh

Is this available anywhere on the web?

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