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Silver 3.5 inch bare hard drive with circuit board visible

Seagate

Seagate ST1000DM003 1TB 64MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-BGHK-5G9FT MPN ST1000DM003

A 1 TB 3.5-inch desktop hard drive with SATA 6.0 Gb/s interface and 64 MB cache

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity1TB
  • Cache64MB
  • Average Latency6Gb/s
  • FeaturesThe Power of One: Seagate brings over 30 years of trusted pe

Options 1TB

  • 1TB capacity for desktop storage
  • 64MB cache speeds up data access
  • SATA 6.0Gb/s interface for fast transfers
  • 5-inch form factor fits standard bays
  • 30 years of Seagate reliability engineering

Desktop storage for everyday workloads

The Seagate ST1000DM003 is a 3.5" internal hard drive with 1TB capacity, 64MB cache and a SATA 6.0Gb/s interface. It suits desktop PCs, all-in-one systems, home servers and entry-level direct-attached storage where large, affordable capacity matters more than peak speed.

Sustained throughput with AcuTrac servo

Seagate AcuTrac servo technology helps maintain consistent tracking during long read and write sessions. The drive uses up to 1.33TB-per-disk technology and delivers an average latency rated at 6Gb/s, so extended file transfers or backup jobs run steadily without the sharp drops seen in burst-only benchmarks.

Standard 3.5" SATA installation

The bare drive measures 146.99mm long, 101.60mm wide and 19.99mm high, fitting any standard 3.5" bay with SATA data and power cables. Units are supplied erased to DoD 5220.22 M standard, unformatted and unpartitioned, so the OS must initialise them; up to 25 bad sectors may be present and cosmetic label variations can occur.

Highlights

  • 1TB capacity for desktop storage
  • 64MB cache speeds up data access
  • SATA 6.0Gb/s interface for fast transfers
  • 5-inch form factor fits standard bays
  • 30 years of Seagate reliability engineering

Specifications

BrandSeagate
SeriesDesktop HDD
ModelST1000DM003
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity1TB
Cache64MB
Average Latency6Gb/s
FeaturesThe Power of One:
Seagate brings over 30 years of trusted performance and reliability to the Seagate Desktop HDDs
Increase your capacity and drive down costs with up to 1.33TB-per-disk hard drive technology
SATA 6Gb/s interface optimizes burst performance
Seagate AcuTrac servo technology delivers dependable performance
Free DiscWizard software enables high capacities on legacy PC BIOS systems
Seagate Secure models provide hardware-based data security and deliver an Instant Secure Erase feature for safe, fast and easy drive retirement*
Seagate Secure models meet the NIST 800-88 media
Form Factor3.5"
Height (maximum)19.99mm
Width (maximum)101.60mm
Length (maximum)146.99mm
Shipping weight0.54 kg
Package size152 × 102 × 51 mm

Other versions of this model

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Questions about this item

How much power does the ST1000DM003 draw during all-day operation?

The 3.5-inch Desktop HDD runs on standard SATA power; idle draw is low and typical for a 1 TB drive, so a normal desktop PSU handles it without extra cables.

What must my system already have to install this bare drive?

You need a free 3.5-inch bay, a SATA data cable, and a SATA power connector from the power supply; the drive ships without cables or brackets.

Will this SATA 6.0Gb/s drive work in a PC that only has SATA 3Gb/s ports?

Yes, the interface is backward compatible and will run at the slower 3Gb/s speed, so older motherboards or controllers can still use the 1 TB capacity.

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