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CRUCIAL® MX300 275GB SATA3 2.5” 7MM (With 9.5MM Adapter) Solid State Drive (SSD)

CRUCIAL® MX300 275GB SATA3 2.5” 7MM (With 9.5MM Adapter) Solid State Drive (SSD) - 1
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CRUCIAL® MX300 275GB SATA3 2.5” 7MM (With 9.5MM Adapter) Solid State Drive (SSD) - 133745_l.jpg CRUCIAL® MX300 275GB SATA3 2.5” 7MM (With 9.5MM Adapter) Solid State Drive (SSD) - 133745_1.jpg CRUCIAL® MX300 275GB SATA3 2.5” 7MM (With 9.5MM Adapter) Solid State Drive (SSD) - 133745_2.jpg Customer Photos (0)

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Part #: CT275MX300SSD1

SKU: 133745
Shipping Weight: 0.5 lbs
Shipping estimated: $5.99 *
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Customer Reviews of CRUCIAL TECHNOLOGY CT275MX300SSD1

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding CRUCIAL TECHNOLOGY CT275MX300SSD1 reviews.
Jay A_W
Experience: 6 Days

Great Drive, Great Price Verified OwnerVerified Owner


-Excellent price on sale
-Easy installation and initialization
The is featherlight and easy to install, either in a top or bottom drive bay. The retail package includes a 9.5mm adapter if needed, and it formatted then installed my OS lightning fast. Highly recommended for a mid-sized SSD, but would obviously recommended an HDD storage in addition.

Experience: 24 Days

CRUCIAL® MX300 275GB SATA3 2.5”


Fast, Stable
Worth for price, this one is better than samsung evo850, samsung is garbage

Experience: 2 Weeks

Workhorse Verified OwnerVerified Owner


MX300 275GB
Been using Crucial SSD's for many years now and don't remember having one go kaput on me so I'll keep using them.

Experience: 2 Weeks

Amazing Buy; Great for beginners Verified OwnerVerified Owner


Comes with Acronis 2015
Thanks to the extra 35 - 19 gigs compared to similar drives it has about 230 gigs free after having Windows 10 installed on it. Performance is no slouch and free Acronis make this a hard ssd to beat for the money

Experience: 30 Days

Great SSD + migration software included!


Great price.
Good size for most laptops.
INCLUDES a license key for software to migrate from a HD to the SSD!!! Most SSD purchases don't include this software and then you have to buy it!
Excellent product for a great price. I highly recommend buying this brand of SSD over the other brands because it includes the migration software for FREE to move your OS from your hard drive to the SSD. I've bought many SSDs and this is the first one that included this software!

Experience: 12 Days

I like it. Verified OwnerVerified Owner


Runs smoothly for me. Includes Acronis if you need to re-image from a previous drive.
Adapter trays not included.
Fortunately I've built a small collection of adapter trays so 2.5" drives can be installed into my tower, but aside from that this is the third or fourth Crucuial drive I've bought, and I've had no negative experiences using any of them, other than actually starting to run out of space quicker than I anticipate (I stick with the lower sizes for maximum affordability).

Experience: 1 Months

Flawless Verified OwnerVerified Owner


Installed, configured & loaded Ubuntu 16.04 without a hitch on my Asus ux305ca.
None so far
A total plug and play experience. Performance is essentially identical to the original drive. I've kept the original drive with Windows 10 in case it is ever needed. Only two ways to make it better: lower the price or increase the size.

Experience: 1 Months

Great ssd for this price Verified OwnerVerified Owner


Cheap Price
Reliable manufacturer
For this price,you wont regret.

Experience: 15 Days

Good and Affordable Verified OwnerVerified Owner


- Very fast !
- Decent amount of space
- Fair price
- Stable
- None
I've had no issues with this SSD. It boots Windows 10 and opens my programs really fast !

Experience: 2 Months

MX300: The spiritual successor to the BX100. Verified OwnerVerified Owner


Good performance, good pricing (275GB for the price of 240GB), excellent feature set (partial power-loss protection), superb power drain (or lack thereof)... all the same things you could say of the Crucial's previous BX100.
Doesn't solve world hunger?
I LOVED the BX100, and was sad to see it discontinued. The replacement BX200 is still one of the worse performing SSDs on the market. The MX300 doesn't dethrone the Samsung 850Evo as the fastest 3D TLC SATA SSD, but overall, regains the title of best overall SSD value.

Crucial SSDs, from the M500 onward, have all contained partial power-loss protection. You won't have to worry about the SSD being bricked or the PC rendered unbootable with an unexpected power loss. It's not as robust as Intel's full power loss protection (only available in their higher end SSDs) that also covers in-flight data, but considering Crucial doesn't charge a premium for this feature, they've at an obvious advantage when the rest of the stats are competitive... and with the MX300, that is the case.

Most TLC SSDs write speeds crash pretty hard when you are initially copying over large amounts of data to them as you run out of the SLC cache. It's especially bad for the smaller 120GB/240GB class of drives, with the smaller BX200 dropping below 50MB/s! With the MX300 and its 3D TLC, even the smallest 275GB drive stays over 120MB/s at its worst... enough to keep up with most HDDs during the odd huge transfers.

Product Videos [ Edit ]

Features [ Edit | History ]

Product highlights
  • Sequential reads/writes up to 530 / 510 MB/s on all file types1
  • Random reads/writes up to 92k / 83k on all file types1
  • Over 90x more energy efficient than a typical hard drive2
  • Accelerated by Micron® 3D NAND technology
  • Dynamic Write Acceleration delivers faster saves and file transfers
  • More durable than a hard drive – no small moving parts that are prone to failure
  • Best-in-class hardware encryption keeps data safe and secure
  • Exclusive Data Defense guards against data corruption
  • Adaptive Thermal Protection allows for adaptive cooling
  • Power Loss Protection completes write commands even if power is lost4
  • Includes free Acronis® True Image™ HD software for easy data migration
  • Compatible with the Crucial Storage Executive tool for easy drive maintenance

Instant performance that lasts.


Increase the speed, durability, and efficiency of your system for years to come with the Crucial MX300 SSD. Boot up in seconds and fly through the most demanding applications with an SSD that fuses the latest 3D NAND flash technology with the proven success of previous MX-series SSDs. Your storage drive isn't just a container, it's the engine that loads and saves everything you do and use. Get more out of your computer by boosting nearly every aspect of performance.

Instantly improve system performance
The Crucial MX300 reaches read speeds up to 530 MB/s and write speeds up to 510 MB/s1 on all file types so you can boot up almost instantly, reduce load times, and accelerate demanding applications with ease. Plus, our Dynamic Write Acceleration technology uses an adaptable pool of high-speed, single-level cell flash memory to generate blistering speeds throughout the drive's long life.

Over 90x more energy efficient than a typical hard drive2
Extreme Energy Efficiency technology within the Crucial MX300 reduces the amount of active power usage that's consumed by the drive. The Crucial MX300 extends your laptop's battery life by using only 0.075W of power, compared to a typical hard drive which uses 6.8W.

Entrust your files to a drive that lasts
With an endurance rating of up to 220TB total bytes written, the Crucial MX300 is engineered with Micron 3D NAND to deliver years of fast performance. The 3D NAND leverages larger NAND cells to improve performance and prolong endurance.

Keep your system cool
In addition to lower active power usage, Adaptive Thermal Protection technology dynamically adjusts storage component activity. This helps keep your system cool and minimizes the risk of damage caused by overheating.

Boost drive performance by up to 10x with Crucial Storage Executive3
This downloadable tool is easy to use and helps monitor and enhance the performance of your Crucial MX300 – update  to the latest firmware and enable the Momentum Cache feature in Storage Executive to instantly improve burst performance. Download the latest version at

Micron quality — a higher level of reliability.
As a brand of Micron, one of the largest flash storage manufacturers in the world, the Crucial MX300 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 MX300 has been thoroughly tried, tested, and proven. You'll notice the difference.

1Based on the published specs of the 525GB model. Speeds based on internal testing. Actual performance may vary.
2Active average power use comparison based on published specs of the 750GB Crucial MX300 SSD and the 1TB Western Digital® Caviar Blue™ WD10EZEX internal hard drive, which, as of January 2016, is one of the industry’s top-selling internal hard drives. All other capacities of the Crucial MX300 SSD have comparable active average power consumption specs, with the exception of the 2050GB version of the drive, which consumes 0.15W.
3Validated by testing included in the “Enhance Burst Performance on Micron and Crucial SSDs Using Momentum Cache” whitepaper, available at
4Refers to data at rest only.

Specifications [ Edit | History ]

Brand Crucial
Form Factor 2.5-inch internal SSD
Total Capacity 275GB
Specs 275GB 2.5-inch internal SSD • SATA 6.0Gb/s • 530 MB/s Read, 500 MB/s Write
Series MX300
Product Line Client SSD
Interface SATA 6.0Gb/s
Device Type Internal Solid State Drive
Unit Height 7.0mm
Form Factor 2.5-inch (7mm)
Package Content Crucial MX300 2.5" (7mm) SSD, 7mm to 9.5mm spacer, Acronis® True Image™ HD certificate

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