Crucial M4 256GB 2.5" SATA III Solid State Drive (SSD) - CT256M4SSD2

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5 out of 5
Total Reviews
Overall Satisfaction
Ease of Use

I bought this SSD for my MacBook Pro. I was astonished how it took less than 7 seconds to boot up the OS. For those who also use virtualizations (VMWare Fusion 4) or heavy applications such as Adobe Dreamweaver or Photoshop, this is a big must as the speeds will blow away your mind.

-Anonymous quote


on 3/31/2012

I'm using it in my HP Probook, easy to install, Win7 boots in 12 seconds, Win8beta boots in 6 seconds The ole 7200rpm drive used to boot Win7 in 45 seconds. One word to describe it is EXTREME!

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Great drive

by Jim on 4/10/2012

Installed it in my HP DV6tqe and cloned the hard drive. It booted up immediately it has performed flawlessly for the last 2 months. Machine boots in 30 seconds, including fingerprint swipe and loading gizmos, programs open instantly. Very happy with this purchase.

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Product Overview

Speed demon.
Hungry for more? The Crucial m4 SSD builds on the success of our award-winning, wildly popular Crucial RealSSD C300 solid-state drive by offering mobile and desktop users scorching-fast read and write speeds, groundbreaking SATA SSD computing, and unparalleled performance for the dollar.

Latest and greatest.
Designed for client computing, the Crucial m4 SSD delivers faster boot and application load times for mobile and desktop users alike. Low power, lightweight, and durable, it empowers high-speed synchronous MLC NAND, advanced controller technology, optimized NAND management, and the second-generation SATA 6Gb/s interface. Together, that technology dramatically improves data transfers for bandwidth-demanding applications.

Clear advantage
SSDs provide many benefits over traditional hard drives.

  • Reduced power consumption
  • Less heat generation
  • Quiet
  • Increased portability, lightweight
  • No moving parts
  • Rugged and reliable operation in even the most demanding operating environments
  • Memory Experts.
    Delivering on the highest quality based upon Micron's leading-edge NAND media, the Crucial brand of memory has long been synonymous with reliability and high-performance. Our expertise in NAND process technology enables us to optimize the performance and durability of Crucial solid-state drives.

    Guaranteed Compatible.
    Crucial m4 series employ a standard hard drive interface and dimensions, so it is an easy storage upgrade for most notebooks. We guarantee compatibility.


    Manufacturer Crucial
    Mfg Part# CT256M4SSD2
    SKU 221150375
    UPC 649528752192
    UPC 14 00649528752192
    Random 4k Read: 40,000 IOPS
    Random 4k Write: 50,000 IOPS
    Integrated 8-channel single chip Controller
    Self-monitoring, analysis, and reporting technology (SMART) command set
    RAID Support
    Average Access Time < 0.1 ms
    Data Reliability: Built-in EDC/ECC
    Tech Specs
    Width: 3.95"
    Depth: 2.75"
    Height: 0.37"
    Weight: 0.17 lbs.
    Form Factor: 2.5"
    Capacity: 256GB
    Interface Type: SATA III
    Max Shock Resistance: 1500G
    Power Consumption (Active): 160 mW
    Power Consumption (Idle): < 85 mW
    Sequential Access - Read: Up to 415 MB/s (SATA 6Gb/s)
    Sequential Access - Write: Up to 260 MB/s (SATA 6Gb/s)
    MTBF: 1,200,000 hours
    Warranty: Three-Year Limited

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