Momentus Thin Hard Drive

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Slim-computing savvy.

Momentus® Thin hard drives offer feature-rich, slim, lightweight style at price and capacity points that enable no-compromise designs for thin computing.

  • World’s first 7mm z-height, 2.5-inch form factor drive
  • Seagate SmartAlign™ technology1 provides a transition to 4K sectors without the need for software utilities
  • Available as a Self-Encrypting Drive (SED) with TCG Opal protocol, and as a FIPS 140-2 Validated SED for government-grade security2
  • Compatible with SATA 3Gb/s designs
Compare all models
  • Mac Icon

    Mac OS

     
  • Windows 7 Compatible

    Windows 7 32 and 64-Bit

     
  • Windows XP Icon

    Windows XP

     
  • Windows Vista Icon

    Windows Vista 32 and 64-Bit

     

Momentus Thin Overview 1 Drive

Opens new frontiers for system designers.

Seagate® has purpose-built the Momentus Thin hard drive to meet our customers’ demand for affordable, slimmer, fully functional computing solutions. Meet your needs with 500GB, 320GB, 250GB and 160GB capacity options.

While traditional laptop hard drives offer a z-height of 9.5 mm, Momentus Thin hard drives stands apart with a z-height of just 7mm.

More Momentus Thin features
Momentus Thin Overview 2 Drive with 4K icon

Smooth migration to Advanced Format.

Momentus Thin hard drives include Seagate SmartAlign technology1. This innovation helps you easily get all the benefits of the new Advanced Format 4K sector standard—no utilities, no extra steps.

More Momentus Thin features
Momentus Thin Overview 3 Drive and lock icons

Secure Self-Encrypting Drive options.

Momentus Thin Self-Encrypting Drives deliver government-grade encryption without performance degradation—protecting your data where it lives. You get all the benefits of secure data encryption without the headaches.

  • The first Seagate SED to ship with the Trusted Computing Group (TCG) Opal protocol
  • The world’s first 7mm SED to ship with FIPS 140-2 validation2
Learn more

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Expert Ratings and Reviews
Cnet.com Crave gadget blog reviews Seagate Momentus Thin hard disk drives, used in tablets
News.Cnet.com Crave: Seagate Momentus Thin powers first HDD-based tablets

[T]his hard drive, which is the world's first 2.5-inch hard drive with a 7mm profile, is now also the internal storage unit for the first HDD-based handheld tablets in the world, the... Archos G9 tablets.

Check out the review

Features

Momentus Thin Features 1 Seagate logo

Enter Seagate® ingenuity.

Until recently, system integrators and OEMs had no choice but to limit their thinner, fully functional computing designs to high-end devices. The available hard drive options were either too costly, too slow performing or both.

Enter Seagate ingenuity. Momentus® Thin hard drives leverage current laptop drives in both material and product design to provide the world’s first 7mm 2.5-inch form factor drive.

The result is affordable, thin storage for entry-level to mainstream laptops, high-end netbooks, thin ultraportables and more. Momentus Thin drives open new frontiers in slim-computing design.

Momentus Thin Features 2 Drive and 4K icons

Seagate® SmartAlign™ technology for easy 4K migration.

A change is coming to the hard drive industry. The smallest sector of organized data on a drive is moving from 512 to 4,096 bytes. The new format, known as Advanced Format (AF) 4K, offers advantages like increased efficiency, but migrating your drive can be challenging.

Luckily, Seagate is ready to help you make a seamless transition to 4K sectors.

Momentus Thin hard drives feature Seagate SmartAlign technology, which automatically does the work of AF migration in the background. The drive's performance is not affected, and there is no need for time-consuming utilities required by other AF-enabled drives.

Smart.

Momentus Thin Features 3 Drive and lock icons

Optimal security with Self-Encrypting Drives.

Momentus Thin hard drives are available as Self-Encrypting Drives (SED) that help secure your data the instant you save it to your drive. For government-grade security, the Momentus Thin hard drive can also be purchased as a FIPS 140-2 Validated SED.1

Lost laptop? Rest easy knowing that your data is secure and 100% encrypted—always. Momentus Thin hard drive features include:

  • Instant on-the-fly encryption without performance degradation
  • Instant SecureErase™ technology that can instantly erase the security key data on your hard drive, enabling secure and easy disposal or repurposing of the drive

1Self-Encrypting Drives (SED) and FIPS 140-2 Validated drives are not available in all models or countries. TM: The FIPS logo is a certification mark of NIST, which does not imply product endorsement by NIST, the U.S., or Canadian governments.

Resources

Specifications

Momentus Thin Hard Drive
 
Capacity 500GB 320GB 250GB
Show me :
Form Factor 2.5" 2.5" 2.5"
Interface Options SATA 6Gb/s SATA 3Gb/s, SATA 6Gb/s SATA 3Gb/s, SATA 6Gb/s
Performance      
Spindle Speed (RPM) 5400 7200, 5400 7200, 5400
Cache (MB) 16 16 16
Transfer Rate, Max Ext (MB/s) 600 300, 600 300, 600
Sustained Data Rate OD      
Average Latency (ms) 5.6 4.17, 5.6 4.17, 5.6
Reliability/Data Integrity      
Nonrecoverable Read Errors per Bits Read 1 in 1014 1 in 1014 1 in 1014
Annualized Failure Rate (AFR)   0.50% 0.50%
Power Management      
Seek, Typical Operating (W) 1.40 1.60, 1.40 1.60, 1.40
Idle, Typical Operating (W) 0.45 0.66, 0.48, 0.45 0.66, 0.48, 0.45
Environmental      
Temperature      
Operating 0° to 60°C 0° to 60°C 0° to 60°C
Non-operating -40° to 70°C -40° to 70°C -40° to 70°C
Shock      
Operating: Gs (ms) 400 (2ms) 350 (2ms), 400 (2ms) 350 (2ms), 400 (2ms)
Non-operating: Gs (ms) 1000 (1ms) 1000 (1ms) 1000 (1ms)
Acoustics (bels - sound power)      
Idle 2.0 2.3, 2.0 2.3, 2.0
Operating 2.2 2.5, 2.2 2.5, 2.2
Physical      
Height (in/mm) 0.276/7.0 0.276/7.0 0.276/7.0
Width (in/mm) 2.760/70.10 2.76/70.10, 2.760/70.10 2.76/70.10, 2.760/70.10
Length (in/mm) 3.959/100.55 3.959/100.55 3.959/100.55
Height (in/mm) (maximum)     0.276/7.0
Width (in/mm) (maximum)     2.76/70.10
Length (in/mm) (maximum)     3.959/100.55
Weight (lb/g) 0.209/95 .203/92, 0.209/95 .203/92, 0.209/95
Model Number Capacity Interface Spindle Speed (RPM) Cache (MB) Areal Density Encryption Maximum Operating Shock Length Width Height Typical Weight AFR Operating Temperature Average Operating Power
ST500LT025 500GB SATA 6Gb/s 5400RPM 16MB 705 Encryption 400Gs 100.55mm 70.10mm 7.0mm 95g   60°C 1.20W
ST500LT015 500GB SATA 6Gb/s 5400RPM 16MB 705 Encryption/FIPS 400Gs 100.55mm 70.10mm 7.0mm 95g   60°C 1.20W
ST500LT012 500GB SATA 6Gb/s 5400RPM 16MB 705   400Gs 100.55mm 70.10mm 7.0mm 95g   60°C 1.20W
ST320LT012 320GB SATA 6Gb/s 5400RPM 16MB 705   400Gs 100.55mm 70.10mm 7.0mm 95g   60°C 1.20W
ST320LT009 320GB SATA 3Gb/s 7200RPM 16MB 425 Encryption/FIPS 350Gs 100.55mm 70.10mm 7.0mm 92g 0.50% 60°C 1.30W
ST320LT020 320GB SATA 3Gb/s 5400RPM 16MB 425   350Gs 100.55mm 70.10mm 7.0mm 92g 0.50% 60°C 1.30W
ST320LT007 320GB SATA 3Gb/s 7200RPM 16MB 425   350Gs 100.55mm 70.10mm 7.0mm 92g 0.50% 60°C 1.30W
ST320LT014 320GB SATA 3Gb/s 7200RPM 16MB 425 Encryption 350Gs 100.55mm 70.10mm 7.0mm 92g 0.50% 60°C 1.30W
ST250LT003 250GB SATA 3Gb/s 5400RPM 16MB 425   350Gs       92g 0.50% 60°C 1.30W
ST250LT012 250GB SATA 6Gb/s 5400RPM 16MB 705   400Gs 100.55mm 70.10mm 7.0mm 95g   60°C 1.20W
ST250LT007 250GB SATA 3Gb/s 7200RPM 16MB 425   350Gs 100.55mm 70.10mm 7.0mm 92g 0.50% 60°C 1.30W
ST250LT009 250GB SATA 3Gb/s 7200RPM 16MB 425 Encryption/FIPS 350Gs       92g 0.50% 60°C 1.30W
ST250LT014 250GB SATA 3Gb/s 7200RPM 16MB 425 Encryption 350Gs       92g 0.50% 60°C 1.30W