Seagate Constellation 2TB Hard Drive

Seagate Constellation 2TB Hard Drive
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Product Information

Seagate Constellation ES 2TB 7200 RPM SATA 3 GB/s 64 MB Cache 3.5-Inch Hard Drive - ST32000644NS

The fourth-generation, 3.5-inch Seagate® Constellation™ ES drive for enterprise 7200-RPM environments enables cost-effective, highly efficient storage with the highest capacities, best-in-class reliability, leading 6Gb/s SAS performance, optimized power and cooling, and optional government-grade security, all backed by Seagate enterprise service and support.

The 2TB capacity can store an unprecedented 76TB per square foot, maximizing floor space at the lowest $/GB. With the lowest power consumption and highest temperature tolerance for a 3.5 inch enterprise drive, the Constellation ES drive optimizes chassis performance in tiered storage solutions. It is the only drive offering a choice of traditional SATA 3Gb/s interface for seamless integration, or the industry-leading 6Gb/s SAS interface for a more reliable, scalable and sustainable high-performance enterprise solution. 

Seagate® Constellation™ ES

  • Constellation ES drive
  • Enterprise-class 3.5-inch 7200-RPM drive
  • The Seagate Constellation ES is the perfect 3.5-inch drive for environments that require highly efficient, reliable and secure storage that delivers seamless enterprise integration, including:
  • High-capacity servers and external storage
  • Storage area networks (SAN)
  • Network attached storage (NAS)
  • Direct attached storage (DAS)
  • Enterprise backup and restore (D2D, virtual tape)
  • Centralized surveillance
  • Cloud storage

Why Choose Seagate Constellation ES?

  • Reduces design and support costs by building on Seagate's best-in-class enterprise storage foundation
  • Features the maximum capacity available-up to 2TB-in a 3.5-inch enterprise-class drive
  • Reduces energy and cooling costs, with the lowest power consumption of any nearline 3.5-inch drive
  • Delivers proven reliability, with an MTBF* of 1.2 million hours
  • Delivers dramatically increased storage scalability and data integrity with 6Gb/s SAS or an enterprise SATA 3Gb/s interface
  • Offers a Self-Encrypting Drive option for government-grade data security**

* Mean Time Between Failures
**Self-Encrypting SAS models require TCG-compliant host or controller support


  • Specifications 2000 GB
  • Model Number ST32000644NS
  • Interface SATA 3.0Gb/s
  • Cache 64 MBytes
  • Capacity 2000 GB (2TB)
  • Guaranteed Sectors 1,953,525,168


  • Height (max) 26.1 mm  (1.028 inches)
  • Width (max) 101.6 mm  (4.010 inches)
  • Length (max) 146.99 mm  (5.787 inches)
  • Weight (typical) >=640 grams  (>=1.411 pounds)


  • Spindle Speed 7,200 rpm
  • Average latency 4.16 msec
  • Random read seek time 8.5 msec
  • Random write seek time 9.5 msec


  • MTBF 1,200,000 hours
  • Annual Failure Rate 0.73%


  • New - Bulk Packaing
Product Code ST32000644NS
Manufacturer Seagate
Condition New
Shipping Weight 2.000lb

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