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Crucial MX300 275GB SATA 2.5" 7mm (with 9.5mm adapter) Internal SSD


  • Brand: Crucial
  • Form Factor: 2.5-inch internal SSD
  • Total Capacity: 275GB
  • Warranty: Limited 3-year
  • 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
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    5 stars 5 reviews
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    • $92.99
    • Save up to 15% off MX300 SSDs
      Up to 15% off MX300 SSDs, while supplies last.  Limit 3 discounted SSDs per customer. Valid for consumers/home users only and cannot be used in conjunction with orders that have special commercial pricing- businesses, government agencies, VARs, VADs, or others.

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    Crucial MX300 275GB SATA 2.5" 7mm (with 9.5mm adapter) Internal SSD

    product information

    Amount of available storage on the module. If there are parenthesis shown – for example (2 x 4GB) – it indicates a kit of 2 or more identical modules is used to reach the Total Capacity.
    Product Specifications
    Brand Crucial
    Form Factor 2.5-inch internal SSD
    Total Capacity 275GB
    Warranty Limited 3-year
    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
    Maximum Buyable Quantity 3
    More information

    Crucial MX300 Solid State Drive

    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
    • 3 year limited warranty

    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 400TB 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.

    product reviews

    OID: 47F8D36EA5CA7304
    PR file path: /pwr/96v439cu/inline/02/62/47F8D36EA5CA7304-en_US-1-reviews.html


    by PowerReviews

    (based on 5 reviews)

    Ratings Distribution

    • 5 Stars



    • 4 Stars



    • 3 Stars



    • 2 Stars



    • 1 Stars




    of respondents would recommend this to a friend.


    No Pros


    No Cons

    Best Uses

    No Best Uses
      • Was this a gift?:
      • No (4)

    Reviewed by 5 customers

    Displaying reviews 1-5

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    Great Product

    By The IT man

    from Ohio

    I love the hard drive. It makes my computer boot up much faster and improve its performance.


    Solid product - Recommended

    By SantaRosa_I_T

    from Sonoma County, CA

    Verified Reviewer

    The MX300 series are a solid product. I continue to utilize the SSD to remove the performance bottleneck of traditional rotational platter hard drives and reduce probability of data loss due to shock or drop events.
    I appreciate the supplied Acronis software as I use it to clone the existing drive and avoid having to reinstall any software. [To do so you must have hardware that will allow you to connect the new MX300 drive, while the current drive is intact. Some systems will have that built in, but I commonly use a SATA to USB external adapter. ~$15 -$20]

    • Was this a gift?:
    • No

    (30 of 47 customers found this review helpful)


    Apple Macbook Pro (Mid-2009)

    By Brandon

    from Dayton, Ohio

    Verified Reviewer


    • Fast Smooth Reliable


    • None

    Best Uses

      I bought the MX300 SSD along with the 8gb ram kit for my (mid-2009) Macbook about 6 months ago. Yeah, I was running a slow 320gb for 7 years! I cannot believe how happy I have been with my crucial SSD. I clean installed OS X El Capitan from a flash drive and my Crucial Hardware has been flawless. Not a single hiccup. My Macbook runs cooler and so much quicker. Simple day to day task aren't "task" anymore, such as booting up, shutting down, moving from application to application, opening up documents etc. Everything is just so smooth and quick. This was highly recommended after scouring forums and I'm so glad I made the decision to purchase. It has truly changed my day to day.

      • Was this a gift?:
      • No

      (21 of 49 customers found this review helpful)


      Great Performance for the Price

      By CSB

      from Temecula, CA

      Verified Reviewer


      • Easy To Install
      • Fast
      • Inexpensive


        Best Uses

          This is my first SSD. The hard drive in my Toshiba S55-b5280 began to fail, so I thought I'd finally try an SSD. Installing the drive was "plug and play" once I got the laptop underside apart. Once installed, the computer fired up, the BIOS recognized the drive, and I had Windows 10 installed in 20 minutes. I am absolutely amazed how fast this computer is without a traditional hard drive -- it's like I have a new computer, but astonishingly faster. Windows 10 fully boots to the desktop in less than 10 seconds. In retrospect, hard drive failure was the best thing to happen to my laptop. I don't think I'll have a computer without an SSD ever again, and I would absolutely recommend the Crucial MX300.

          • Was this a gift?:
          • No

          (27 of 53 customers found this review helpful)


          Excellent, inexpensive SSD

          By Silurian

          from Colo Spgs,CO

          Verified Reviewer


          • Dependable
          • Easy To Transfer From Hd
          • Fast


          • Hard To Secure In A 35"

          Best Uses

          • Best Hd Replcmnt For Home

          More capacity than I had used on a hard disk twice the size. Blazing fast for UEFI systems

          • Was this a gift?:
          • No

          Displaying reviews 1-5

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