Seagate ST500LM021 500GB 2.5″ Laptop Thin Hard Drive



Seagate ST500LM021 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 2.5″ Laptop Thin Hard Drive


Slim, Light Hard Drive with Loads of Features

Thin Laptop Computing Savvy

ST500LM021Seagate® Laptop Thin HDD (Formerly Momentus® Thin) Offers 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™ technology provides easy transition to 4K sectors
  • Available as a Self-Encrypting Drive (SED) and FIPS 140-2 SED2
  • Compatible with SATA 3Gbps designs
  • Backed by a 2-year limited warranty

ST500LM021Opens New Frontiers for System Designers

Seagate has purpose-built the Laptop Thin HDD 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 9.5mm, the Laptop Thin HDD stands apart with a z-height of just 7mm.

ST500LM021Smooth Migration to Advanced Format 4K

Laptop Thin HDDs include Seagate SmartAlign technology. This innovation helps you easily get all the benefits of the new Advanced Format 4K sector standard – no utilities, no extra steps. AF drive migration happens automatically 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.


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Secure Self-Encrypting Drive Options

Seagate Laptop 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.

  • Ships with the Trusted Computing Group (TCG) Opal protocol
  • The world’s first 7mm SED to ship with FIPS 140-2 validation
  • Instant on-the-fly encryption without performance degradation
  • Instant Secure Erase™ technology that can instantly erase the security key data on your hard drive, enabling secure disposal or repurposing of the SED

ST500LM021Enter 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.

Seagate Laptop Thin HDD 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 slim-computing devices.

ST500LM021Thin Hard Drive Perfect For:

  • Building entry-level to high-performance ultraportables laptops
  • Creating thin, light netbooks without compromising storage or affordability
  • Designing slim consumer electronics devices
  • Protecting your sensitive data


Learn more about the Seagate ST500LM021

ST500LM021 Momentus® Thin 5400.9 SATA 500GB Hard Drive ST500LT025 Laptop Thin HDD 500GB Hard Drive ST500LM021 Momentus® Thin 5400.9 SATA 500GB Hard Drive ST500LT015 Momentus® Thin 5400.9 SATA 500GB Hard Drive ST500LT012 Momentus® Thin 5400.9 SATA 320GB Hard Drive ST320LT012 Laptop Thin HDD 320GB Hard Drive ST320LM010 Momentus® Thin 5400.9 SATA 250GB Hard Drive ST250LT012
Capacity 500GB 500GB 500GB 500GB 320GB 320GB 250GB
Interface SATA 3Gbps SATA 3Gbps SATA 3Gbps SATA 3Gbps SATA 3Gbps SATA 3Gbps SATA 3Gbps
Spin Speed 5400RPM 7200RPM 5400RPM 5400RPM 5400RPM 7200RPM 5400RPM
Cache 16MB 32MB 16MB 16MB 16MB 32MB 16MB
Areal Density 705 670 705 705 705 670 705
Encryption Yes Yes
Maximum Operating Shock 400Gs 400Gs 400Gs 400Gs 400Gs 400Gs 400Gs
Length 100.55mm 100.55mm 100.55mm 100.55mm 100.55mm 100.55mm 100.55mm
Width 70.10mm 70.10mm 70.10mm 70.10mm 70.10mm 70.10mm 70.10mm
Height 7.0mm 7.0mm 7.0mm 7.0mm 7.0mm 7.0mm 7.0mm
Operating Temperature 140°F (60°C) 140°F (60°C) 140°F (60°C) 140°F (60°C) 140°F (60°C) 140°F (60°C) 140°F (60°C)
Average Operating Power 1.2W 1.5W 1.2W 1.2W 1.2W 1.5W 1.2W


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