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Crucial CT128M550SSD1 128GB SATA 2.5
Crucial

Crucial CT128M550SSD1 128GB SATA 2.5" Internal SSD

★★★★★4.6 (1715 reviews)

Upgrade Your System with Speed and Reliability The Crucial M550 SSD provides a significant performance boost to your computer, offering faster boot times, quicker application loading, and improved overall responsiveness. Built with Micron quality, this internal solid-state drive ensures reliabil...

$39.99*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Upgrade Your System with Speed and Reliability

The Crucial M550 SSD provides a significant performance boost to your computer, offering faster boot times, quicker application loading, and improved overall responsiveness. Built with Micron quality, this internal solid-state drive ensures reliability and longevity.

Key Features:

  • Fast Performance: Over 20 times faster than a typical hard drive.
  • Low Power Consumption: Consumes significantly less power for longer battery life.
  • Micron Quality: Backed by the quality and innovation of Micron technology.
  • Native Write Acceleration: Ensures consistent speeds across all file types.
  • RAIN Technology: Protects your data at the component level.
  • Adaptive Thermal Protection: Prevents overheating for optimal performance.
  • Hardware-Based Encryption: Secures and protects your data without performance loss.

Specifications:

  • Brand: Crucial
  • Model: CT128M550SSD1
  • Capacity: 128GB
  • Interface: SATA
  • Form Factor: 2.5"
  • Thickness: 7mm (with 9.5mm adapter)
  • Features: Native Write Acceleration, RAIN Technology, Adaptive Thermal Protection, Hardware-Based Encryption

Key Features

Load files and programs almost instantly

Boot up almost immediately

550 MB/s sequential reads, 350 MB/s sequential writes, 90k random reads, 75k 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

Specifications

Capacity
128GB
Form Factor
2.5"
Interface
SATA
Sequential Read Speed
550 MB/s
Sequential Write Speed
350 MB/s
Random Read Speed
90k IOPS
Random Write Speed
75k IOPS
Compatibility
PC and Mac systems

Pros & Cons

👍 Pros

  • Achieve almost instantaneous loading of files and programs, significantly boosting daily computing efficiency.
  • Experience nearly immediate system boot-up, reducing wait times and allowing you to start tasks quicker.
  • Boasts a strong 550 MB/s sequential read speed, facilitating fast access to large applications and media files.
  • Offers 90k random read IOPS, which is beneficial for rapid access to small, scattered data, improving multitasking performance.
  • Designed to manage power effectively, contributing to longer battery life for compatible laptop systems.

👎 Cons

  • The 128GB capacity can be quite limited for users needing ample storage for extensive software installations, games, or large multimedia libraries.
  • The sequential write speed of 350 MB/s is lower than some comparable SSDs, which might affect performance during large file transfers.
  • While faster than traditional HDDs, this SATA-based SSD will not match the speed of modern NVMe SSDs in compatible systems.
  • The general description of "encrypt and protect personal data" does not specify the type or level of encryption technology used.
  • The product does not specify shock resistance or other durability ratings, which could be a consideration for mobile devices.

Frequently Asked Questions

This Crucial M550 SSD is designed to allow your computer to boot up almost immediately, offering a significant improvement over traditional hard drives.
It features 550 MB/s sequential reads, 350 MB/s sequential writes, 90k random reads, and 75k random writes, designed for quick data handling.
Yes, the Crucial M550 SSD is compatible with both PC and Mac systems, making it a versatile upgrade option.
Yes, this SSD can encrypt and protect personal data against loss or theft, providing an added layer of security for your files.
While the 128GB capacity is suitable for an operating system and essential applications, the M550 series is available in capacities up to 1TB if you require more extensive storage.
Yes, this SSD is designed to manage power efficiently, which can contribute to your battery lasting longer on compatible devices.

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