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Key Features & Benefits
• Reduces design and support costs by building on
the Seagate best-in-class enterprise storage foundation
• Features the maximum capacity available—up to
2TB—in a 3.5-inch enterprise-class hard disk drive
• Features a traditional 3.5-inch form factor with
enhanced rotational vibration tolerance and high data integrity for enterprise-class reliability in a cost-effective drive
• Delivers proven reliability, with an MTBF* of
1.2 million hours • Lets you choose a 3Gb/s Enterprise SATA or 6Gb/s
SAS interface which eases integration and delivers up to 2x the
throughput of traditional 3Gb/s nearline hard drives • Reduces energy and cooling costs, with the
lowest power consumption of any nearline 3.5-inch drive • Includes Seagate PowerChoice™ technology for
even greater on-demand power savings during slow or idle periods • TCG-compliant, Self-Encrypting Drive (SED)
security option (SAS models only) eliminates the need to overwrite
or physically destroy drives, enables safe return of drives for
warranty or expired lease purposes and allows organizations to
securely repurpose or sell hard disk drives**
*Mean time between failures
**Not available in all countries

Best Fit Applications
• High-capacity data center storage • Storage area networks (SAN), network attached
storage (NAS) and direct attached storage (DAS) • Enterprise backup and restore—D2D, virtual tape • Centralized surveillance • Cloud storage

Constellation ES Specifications
| Specifications |
| Model Number |
ST32000445SS |
| Interface |
6-Gb/s SAS |
| Cache |
16MB |
| Capacity |
2TB |
| Guaranteed Sectors |
3,907,029,168 |
| PHYSICAL |
| Height |
26.1mm (1.028 in) |
| Width |
101.6mm (4.000 in) |
| Length |
146.99mm (5.787
in) |
| Weight (typical) |
710g (1.565 lb) |
| PERFORMANCE |
| Spin Speed |
7200 RPM |
| Sustained data transfer rate |
150Mb/s |
| Average latency |
4.16ms |
| Random read seek time |
<8.5ms |
| Random write seek time |
<9.5ms |
| I/O data transfer rate |
600MB/s |
| Unrecoverable read errors |
1
in 1015 |
| RELIABILITY |
| MTBF |
1,200,000 hours |
| Annual Failure Rate |
0.73% |
| POWER |
| Average idle power |
8.0W |
| Average operating power |
12.2W |
| Average seek power |
11.2W |
| Maximum start current, DC |
2.08 |
ENVIRONMENT Ambient
Temperature |
| Operating |
5°–60°C |
| Nonoperating |
-40°–70°C |
| Maximum operating temperature change |
20°C per hour |
| Maximum nonoperating temperature change |
30°C per hour |
| Shock |
| Operating Shock (max) |
70 Gs for 2ms |
| Nonoperating Shock (max) |
300 Gs for 2ms |
| ACOUSTICS |
| Acoustics (Idle Volume) |
2.7 bels |
| Acoustics (Seek Volume) |
3.0 bels |
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