Seagate Constellation ES.2 ST32000645SS 2TB SAS HDD

Seagate Part #/MPN: ST32000645SS

DiscTech Item #: SGT-ST32000645SS-BN-5Y

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Enterprise Grade

Capacity: 2TB

Speed: 7,200RPM

Interface Types: SAS Serial Attached SCSI

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Sustained Throughput: 155

Electrical Interface: SAS-2 Serial Attached SCSI v2 - 6.0Gbps

On-Board Cache: 64MB

Seagate Constellation ES.2ST32000645SS 2TB / 2000GB 7.2K 6.0Gbps SCSI / SAS Hard Drive - Brand New

  • Industry’s highest capacity enterprise drive for sustaining demanding data growth
  • Optional Model Meets regulatory data security compliance requirements and is FIPS 140-2 Validated™ to protect Sensitive but Unclassified and Protected class data*
  • Fifth-generation, capacity-optimized nearline drive designed for 24x7 enterprise reliability
  • SAS-based, end-to-end data integrity and enhanced error correction for accurate data storage
  • Best-in-class enhanced rotational vibration tolerance ensures consistent bulk data performance
  • Improved power and cooling efficiencies with low power consumption and enhanced PowerChoice™ technology
  • Multi-drive firmware maximized for enterprise system availability
  • Robust performance with dual processor and ramp load technologies


This drive is compatible with any of our SAS drive trays and any of our SAS controllers.

Model NumberST32000645SS
InterfaceSAS 6Gb/s
Height (maximum)26.10mm (1.028 in)
Width (maximum)101.85mm (4.010 in)
Length (maximum)147.00mm (5.787 in)
Weight (typical)700g (1.543 lb)
Spin Speed (RPM)7200 RPM
Sustained data transfer rate155MB/s
Average latency4.16ms
Random read seek time8.5ms
Random write seek time9.5ms
I/O data transfer rate600MB/s
Unrecoverable read errors1 in 1015
MTBF1,200,000 hours
Annual Failure Rate0.73
Average idle power7.40W
Average operating power11.3W
Ambient Temperature
Maximum operating temperature change20°C per hour
Maximum nonoperating temperature change20°C per hour
Operating Shock (max)70/40 Gs for 2ms
Nonoperating Shock (max)300 Gs for 2ms
Acoustics (Idle Volume)2.8 bels
Acoustics (Seek Volume)3.2 bels

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ROHS Compliant

Weight: 1.8 lb

Warranty: 5 Year DiscTech

Brand New

Condition Levels Explained

The product is brand new.

5 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty