Seagate

Seagate ST500LT015 Momentus Thin 500GB Internal Hard Drive

4.5 (2497 reviews)

Secure Your Data with this Self-Encrypting Hard DriveIntroducing the Seagate Momentus Thin SED. This internal hard drive automatically encrypts your data without hindering your system's performance. It complies with TCG Opal standards to ensure seamless and secure encryption of all data written t...

$73.00*
In Stock on Amazon.com
View on Amazon

*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

Secure Your Data with this Self-Encrypting Hard Drive

Introducing the Seagate Momentus Thin SED. This internal hard drive automatically encrypts your data without hindering your system's performance. It complies with TCG Opal standards to ensure seamless and secure encryption of all data written to and read from the drive.

  • Brand: Seagate
  • Model: ST500LT015
  • Type: Internal Hard Drive
  • Encryption: Self-Encrypting Drive (SED)
  • Standard Compliance: TCG Opal

Key Features

Seagate Self Encrypting Drives meet TCG Opal encryption standards. Government-grade encryption without performance degradation

The first Seagate Self Encrypting Drive to ship with the Trusted Computing Group (TCG) Opal protocol

Instant Secure Erase technology that can instantly erase the security key data on your hard drive, enabling secure and easy disposal or repurposing of the drive

7mm z-height form factor enables thin chassis design for all segments of laptop computing

Seagate Smart Align technology provides a transition to 4K sectors without the need for software utilities

7mm z-height form factor enables thin chassis design for all segments of laptop computing

Seagate SmartAlign technology provides a transition to 4K sectors without the need for software utilities.

The Momentus Thin SED is the first Trusted Computing Group Opal specification drive to achieve FIPS 140-2, Level-2 certification by the U.S. and Canadian governments

Features 16MB cache on a 5400rpm, thin drive

Specifications

Model
ST500LT015
Capacity
500GB
Form Factor
7mm z-height
Encryption Standards
TCG Opal, FIPS 140-2, Level-2 certified
Security Features
Self Encrypting Drive (SED), Instant Secure Erase
Sector Technology
4K sectors with Seagate Smart Align technology
Cache
16MB
Spindle Speed
5400rpm
Intended Use
Laptop computing

Similar Products

Other products from the same family that visitors often consider:

Pros & Cons

👍 Pros

  • Features Seagate Self Encrypting Drives that meet TCG Opal encryption standards for government-grade security without performance degradation.
  • The first Seagate Self Encrypting Drive to include the Trusted Computing Group (TCG) Opal protocol for enhanced data protection.
  • Incorporates Instant Secure Erase technology, allowing for quick and secure wiping of data keys for disposal or repurposing.
  • Its 7mm z-height form factor enables thin chassis designs, making it suitable for modern, slim laptop computing segments.
  • Utilizes Seagate Smart Align technology, facilitating a smooth transition to 4K sectors without the need for additional software utilities.
  • Achieved FIPS 140-2, Level-2 certification, ensuring a high level of security validated by U.S. and Canadian governments.
  • Offers a 16MB cache, which can help improve read and write performance for frequently accessed data.

👎 Cons

  • The 500GB capacity might be considered limited for users requiring extensive storage for large files, media, or numerous applications.
  • With a 5400rpm spindle speed, this drive may offer slower performance compared to higher RPM HDDs or solid-state drives (SSDs).
  • Being an internal hard drive, installation requires opening the laptop chassis, which may not be suitable for all users.
  • While offering advanced security, the encryption features may require specific software or system configurations to utilize fully.
  • The benefits of TCG Opal and FIPS 140-2 certification may be overkill for average users not handling highly sensitive data.

Frequently Asked Questions

The Seagate Momentus Thin internal hard drive offers a storage capacity of 500GB.
Yes, it is a Self Encrypting Drive (SED) that meets TCG Opal encryption standards and has achieved FIPS 140-2, Level-2 certification for government-grade security.
This drive features a 7mm z-height form factor, which enables thin chassis designs for various laptop computing segments.
No, it utilizes Seagate Smart Align technology, which provides a transition to 4K sectors without the need for additional software utilities.
The Seagate Momentus Thin features a spindle speed of 5400rpm, combined with a 16MB cache.