Crucial 128GB m4 SATA 6Gb/s mSATA Solid State Drive

Product overview



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Crucial® m4 mSATA SSD: Award-winning performance. Tiny form factor.

The Crucial® m4 mSATA SSD delivers all of the award-winning performance and reliability of the Crucial m4 SSD - in a drive that's an eighth of the size. Measuring in at about one-third the size of a standard business card (3cm x 5cm), the Crucial m4 mSATA is designed primarily for ultrathin laptop users who want to dramatically increase their system's performance. Featuring the same advanced controller technology, Micron custom firmware and high-speed synchronous MLC NAND that have made the Crucial m4 SSD a mainstay on the market, the Crucial m4 mSATA SSD is engineered to deliver the same blazing-fast performance as our award-winning 2.5-inch SSD- in a smaller mSATA form factor.

Ultrathin form factor means flexibility.

Because of its tiny mSATA form factor, the Crucial m4 mSATA SSD can do things that hard drives and other SSDs often can't. With the Crucial m4 mSATA SSD, save valuable system space by mounting it directly to the mSATA socket on your motherboard - and free up a hard drive bay in the process. Or just keep your existing hard drive and use the Crucial m4 mSATA SSD as a cache to accelerate the system's performance. Validated for Intel® Smart Response Technology and NVELO Dataplex™ caching software, it's designed to work as a cache or as a standalone SSD for ultrathin laptops. No matter how you use the Crucial m4 mSATA SSD, experience high-performance storage in a tiny, low-power package.

Consistently fast speeds. No exceptions and no fine print.

There's a reason that Crucial SSDs have garnered numerous international awards - they do what they're supposed to do. No matter what kind of files you're working with on a Crucial SSD, you'll experience high speeds with no drop in performance. Unlike other SSDs on the market, Crucial SSDs treat all files the same, regardless of whether they're compressed or uncompressed. This is important because the files most people use everyday - videos, mp3s, advanced graphics files and zip files - are compressed files and thus unable to be compressed any further. While many SSDs on the market achieve faster speeds by using file compression, many of the most common file types can't be compressed, resulting in SSDs that often deliver drastically slower speeds than originally advertised. With the advanced technology of a Crucial SSD, however, our advertised speeds are tied to real world use.

Crucial--quality you can depend on.

Crucial is a trusted name when it comes to SSDs, and that's no coincidence. As a brand of Micron, one of the world's leading manufacturers of SSDs, our engineers work tirelessly to design, refine, and support a powerful line of SSDs--all the way down to the NAND components. With over 15 years of experience in the memory industry, rigorous quality control testing, and the ongoing development of advanced technology, we continue to innovate without sacrificing what has made us great: high-quality products backed by outstanding customer service.

Crucial 128GB m4 SATA 6Gb/s mSATA Solid State Drive

  • Capacity: 128GB
  • Interface: SATA 6Gb/s (SATA III)
  • Sustained Sequential Read2 up to (128k transfer): 500MB/s
  • Sustained Sequential Write2 up to (128k transfer): 175MB/s
  • Random Read up to3 (4k transfer): 45,000 IOPS
  • Random Write up to3 (4k transfer): 35,000 IOPS
  • Form Factor mSATA
  • NAND Flash Memory: 25nm Micron NAND Flash Memory Multi-Level Cell (MLC) SSD-Quality Components
  • Life Expectancy: 1.2 million hours Mean Time Between Failures (MTBF)
  • Warranty: Limited three year warranty
  • Endurance: 72TB = 40GB written per day for 5 years
  • Operating Temperature 0°C to 70°C
  • Compliance CE, FCC, BSMI, C-Tick, VCCI, KCC, RoHS, China RoHS, WEEE, TUV, UL, SATA-IO
  • Firmware Field Upgradeable Firmware
  • Product Health Monitoring Self-Monitoring, Analysis and Reporting Technology (SMART) commands



Product Description
Crucial m4 - solid state drive - 128 GB - SATA 6Gb/s
Solid state drive - internal
128 GB
NAND Flash Memory Type
Multi-level cell (MLC)
Form Factor
SATA 6Gb/s
Data Transfer Rate
600 MBps
Smart Response Technology
Dimensions (WxDxH)
29.85 mm x 50.8 mm x 3.75 mm
10 g
Manufacturer Warranty
3 years warranty



Device Type
Solid state drive - internal
128 GB
NAND Flash Memory Type
Multi-level cell (MLC)
Form Factor
SATA 6Gb/s
Smart Response Technology
29.85 mm
50.8 mm
3.75 mm
10 g


Drive Transfer Rate
600 MBps (external)
Internal Data Rate
500 MBps (read) / 175 MBps (write)
4KB Random Read
45000 IOPS
4KB Random Write
35000 IOPS


1,200,000 hours

Expansion & Connectivity

1 x SATA 6 Gb/s - 52 pin mini-SATA
Compatible Bay

Software & System Requirements

Software Included


Compliant Standards

Manufacturer Warranty

Service & Support
Limited warranty - 3 years

Environmental Parameters

Min Operating Temperature
0 °C
Max Operating Temperature
70 °C
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