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Crucial M550 512GB SATA 2.5" 7mm (with 9.5mm adapter) Internal Solid State Drive CT512M550SSD1

by Crucial
749 customer reviews
| 56 answered questions

Available from these sellers.
512 GB
  • Load files and programs almost instantly
  • Boot up almost immediately
  • 550 MB/s sequential reads, 500 MB/s sequential writes, 95k random reads, 85k random writes
  • Download massive files in seconds rather than minutes
  • Manage power so your battery lasts longer
  • Store lots of data - available in capacities up to 1TB
  • Compatible with PC and Mac systems
  • Encrypt and protect personal data against loss or theft
4 new from $449.99 1 refurbished from $299.99

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Product Description

Capacity:512 GB

Crucial M550 512GB SATA 2.5 inch 7mm (with 9.5mm adapter) Internal Solid State Drive CT512M550SSD1

Crucial M550 SATA 2.5" 7mm (with 9.5mm adapter) Internal Solid State Drive
Do more. Faster. Longer.

A breakthrough in innovation, the Crucial M550 SSD is over 20 times faster than a typical hard drive* and consumes significantly less power. It enables your computer to boot up almost immediately, load files and programs almost instantly, accelerate demanding applications, and manage power so that your battery lasts up to 50 minutes longer. Backed by the most advanced feature set available - Native Write Acceleration, RAIN technology, Adaptive Thermal Protection, hardware-based encryption, and our exclusive data integrity algorithm - the Crucial M550 delivers a complete performance gain that's measured by far more than just specs.

Micron quality - a higher level of reliability.

As a brand of Micron, one of the largest flash storage manufacturers in the world, the Crucial M550 is backed by the same quality and innovation that has produced some of the world's most advanced memory and storage technologies. With over a thousand hours of prerelease validation testing and hundreds of SSD qualification tests, the Crucial M550 has been thoroughly tried, tested, and proven for the most demanding applications.

Performance level based on averaged PCMark Vantage HDD test scores of five leading hard drives compared to the Crucial M550 SSD. Actual performance level may vary based on benchmark used and individual system configuration. Test setup: 256GB Crucial M550 SSD (firmwareMU01), 2TB Western Digital WD20EURS 7200RPM hard drive, 2TB Seagate ST2000DM001 7200 RPM hard drive, 1TB Western Digital WD10EZEX 7200RPM hard drive, 750GB Seagate ST3750640AS 7200RPM hard drive, and 500GB Western Digital WD5000AVDS 7200RPM hard drive, all tested on an Intel DZ87KLT-75K motherboard, Intel i7-4770K 3.50GHz processor, BIOS Rev. 0446, and Windows 8 Pro 64-bit operating system using PCMark Vantage HDD test suite. Benchmark testing conducted December 2013.

Consistently fast speeds. No exceptions.

Every manufacturer has ideas about how to deliver better performance. Some use file compression schemes, but those don't help video, audio, or graphic files that are already compressed. Some steal system memory to improve a slow drive. The Crucial M550 treats all files the same, regardless of whether they're compressed or uncompressed, so the specs we advertise are the same ones you'll see in real world use: true 550 MB/s sequential reads across all file types.

Achieve top speeds without sacrificing reliability.

Normally, as an SSD's level of performance increases, its level of reliability decreases. Not so with the Crucial M550. With over 35 years of defining and refining some of the world's most advanced memory and storage technologies, we leveraged our expertise to create RAIN (Redundant Array of Independent NAND). This technology protects your data at the component level, similar to the way RAID is used with multiple drives.

Save on power costs and enjoy longer battery life.

Run your system longer than ever before - and use less power. Based on published specs, a common laptop hard drive uses 2.5 watts of power on an average workload, compared to 0.15 watts on the Crucial M550 (which is up to 94% more energy efficient). ** In everyday terms, this means significantly more battery life and substantial savings on power costs.

Secure and protect your data - with no loss in performance.

You probably save lots of sensitive and personal information on your computer - encrypt it and keep it safe. As a self-encrypting drive, the Crucial M550 incorporates the highest level of hardware encryption into the controller, allowing the drive to operate at full speed without the performance loss associated with software-based encryption. The Crucial M550 is one of the only drives on the market to meet the rigorous requirements of TCG Opal 2.0, IEEE-1667, and Microsoft eDrive.

Keep your system cool - even when you overwork it.

Push your drive to the limit and avoid overheating, even in ultra-small, thermally constrained systems. The Crucial M550 includes Adaptive Thermal Protection technology, which enables the drive to dynamically adjust NAND activity based on usage demands. With this technology, the drive is able to maintain optimal operating temperatures, even when you overwork it.

Store up to 1TB.

Available in capacities up to 1TB, the Crucial M550 provides plenty of space to store large programs and your ever-growing collection of photos, videos, music, and work files. Available in the form factors of today (2.5-inch and mSATA), and tomorrow (M. 2), the Crucial M550 is designed to go the distance.

Product Details

Capacity: 512 GB
  • Product Dimensions: 5.1 x 0.8 x 5.1 inches
  • Shipping Weight: 0.3 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Item model number: CT512M550SSD1
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (749 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at March 18, 2014

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

71 of 73 people found the following review helpful By Dr. Mark on December 1, 2014
Size: 128 GB Verified Purchase
I have owned a computer repair business since 2003 and this M550 line has to be one of my favorite hard drive lines to date (and I've probably bought/installed, repaired/replaced close to 10,000 hard drives in my life). In my humble opinion, when it comes to SSD's you can't go wrong with Crucial or Intel. I usually choose the best price out of the two. But more so lately, I've been opting for Crucial's M550 line. The M500's are great if you need to go a bit cheaper on your budget, and the Intels are great if you want to splurge. But the M550 line is a great middle-ground because you get a good price and very high quality. By the way, I am a data-recovery specialist, so in addition to buying/installing tons of new hard drives, I have also worked with thousands of iffy, dying & dead hard drives over the years. I have probably spent more time testing hard drives than I have spent sleeping in my life. So when I endorse a drive, I don't just think about how it's going to behave right out of the box... but also how it performs over its life and how it can be worked with at the end of its life in case data needs to be recovered. That's when you want quality... when other drives of the same age are going down. But remember that companies do have a way of skimping on quality as time goes by, so no product line can be trusted forever. Always do your homework. And of course, always keep your most important data backed up in many locations both at home and in the cloud (if you dare to trust the cloud). Thanks for reading and good luck.
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114 of 126 people found the following review helpful By Wayne TOP 1000 REVIEWER on April 5, 2014
Size: 512 GB Vine Customer Review of Free Product ( What's this? )
We already know Solid State Drives are super fast and even the slowest will easily blow away any disk drive. But just how fast is this drive when benchmarked? And how does it compare to other similar drives. Well I've got a few tested, so let's see how it did!


For my testing I'm using my custom built 3rd Gen i7 Workstation with an ASUS P8Z68-V PRO Motherboard running Win8.1 x64. Each drive tested was connected as a 2nd drive to the on-board Intel 6GB SATA controller. These drives were also brand new, never used. Just partitioned, quick format, and off we go with tests. The two benchmark programs are CrystalDiskMark and AS SSD. I'll be uploading benchmark results for this drive separately.


Without going into too much technical detail, I'll briefly explain what I'm talking about below. A sequential test is where it simply read/writes large blocks of data that are physically adjacent to each other on the drive, one after another. Not all real-world data use will fall into this category, but half would be a reasonable assumed average. The other is the random test, where we read/write 4K or 512K (depending on test) blocks of data to various locations on the drive. This usually makes up the other half of day-to-day disk usage. Compare them back to back and you have a pretty good idea how the drive will perform in your hands.

CRUCIAL 550 (512GB)

The Crucial 550 didn't quite hit the advertised speeds, but we should note that your results will vary depending on your configuration. I'm sure Crucial's test bed was a bit more optimized than a random desktop. Sequential Read was 478MB/s and 466MB/s Write with Crystal Mark. 4K Random Read hit 25MB/s and 69MB/s Write.
Read more ›
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34 of 39 people found the following review helpful By JOHN on March 25, 2014
Size: 128 GB Verified Purchase
I just exchanged my old HDD out for this new SSD and the boot time for windows 7 went from 1.43 mins to 29 seconds. Windows performance went from 2.7 to 7.1. Waiting time is dramatically reduced. I used a disk cloning program and it was super easy. I will be ordering another one for my other laptop.
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24 of 27 people found the following review helpful By McDiggle on May 5, 2014
Size: 256 GB Verified Purchase
Unbelievably fast! My late 2009 15" Macbook Pro boots Mavericks in under 10 seconds! A must have for any laptop user!
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6 of 6 people found the following review helpful By amit on September 22, 2014
Size: 128 GB Verified Purchase
it works great!!! only am taking one star off because it create clone issue but support was quick and streight so am able to resolve issue within 24 hour i definitely recommend as customer service is far better than c-gate and wd

I was stop receiving windows update after clone ...

Go to control panel and type windows update and see if it's red or green.. if it's red and say windows update service is not running than you have issue... here is process

To replace possibly malfunctioning manufacturer-specific Serial ATA drivers or a non compatible SATA Driver we need to replace it with Microsoft's MSAHCI or StorAHCI drivers which may have better functionality/compatibility in your system, use the following guide:

1. Enter Device Manager in Windows via either your Control Panel or Computer Management.
2. You should see a category of "IDE ATA/ATAPI controllers or Storage Controller driver". Click the 'plus' symbol to the left of this line to expand that category.
3. All manufacturer drivers under this category will appear. For each entry, right click, select 'Update driver software'
4. Then you need select browse my system.
5. Then select pick from list of drivers.
6. Select the "Standard AHCI 1.0 Serial ATA Controller"
7. Then click next and the system will reboot and the driver will be swapped and you can go back in there to confirm that.
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