The Seagate Constellation.2 drive is the only 2.5-inch enterprise-class hard drive delivering both 1TB capacities and enterprise reliability at the industry's lowest power consumption for storage-hungry nearline applications.
MacMall Part #: 8266360
Manufacturer Part #: ST91000640SS
Bulk data storage in a small footprint.
The Seagate Constellation.2 drive is the only 2.5-inch enterprise-class hard drive delivering both 1TB capacities and enterprise reliability at the industry's lowest power consumption for storage-hungry nearline applications. Self-Encrypting Drive (SED) and FIPS 140-2 Validated SED security options available to help you protect your data.
Maximizes data center footprint with up to 76TB per square foot
Energy efficient storage at under 3.9 watts (idle)
Highest nearline reliability with an MTBF of 1.4M hours
6Gb/s performance in both SAS and SATA interfaces
Unparalleled power savings.
Constellation.2 hard drives reduce per-gigabyte cooling and energy costs by packing high capacities into an SFF, low-power-consumption drive.
Included Seagate PowerChoice technology can further reduce energy costs by empowering IT organizations to tailor systems for optimal performance and power consumption.
Big storage for small spaces.
Constellation.2 hard drives can help you deploy additional enterprise storage without expanding your data center.
With its 15mm z-height, the 1TB model is the first 2.5-inch hard drive capacity-optimized for dense, space-constrained data centers. This model can help you store twice as much data in the same footprint, supporting up to 76TB of storage per square foot.
Constellation.2 hard drives are available as Self-Encrypting Drive models. SED options can improve data-at-rest security and reduce drive retirement costs.
Meets regulatory data security compliance requirements and is FIPS 140-2 Validated to protect Sensitive but Unclassified and Protected class data.
Hard drive - internal
Idle Read After Write (IRAW), Background Media Scan (BMS), Perpendicular Magnetic Recording (PMR), PowerChoice , S.M.A.R.T.
Drive Transfer Rate
600 MBps (external)
8.5 ms (average)
Track-to-Track Seek Time
1 per 10^15
Expansion & Connectivity
1 x SAS 6Gb/s
1 x internal - 2.5"
Compatible with Windows 7
"Compatible with Windows 7" software and devices carry Microsoft’s assurance that these products have passed tests for compatibility and reliability with 32-bit and 64-bit Windows 7.
Service & Support
5 years warranty
Service & Support Details
Limited warranty - 5 years
Min Operating Temperature
Max Operating Temperature
Humidity Range Operating
5 - 95%
70 g @ 2ms (operating) / 400 g @ 2ms (non-operating)
0.5 g @ 5-500 Hz (operating) / 3 g @ 5-500 Hz (non-operating)
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