Constellation Hard Drives

The Seagate Constellation drive is the perfect 2.5-inch enterprise-class hard drive delivering both high capacity and reliability at the industrys lowest power consumption for storage-hungry Tier 2/nearline applications. Maximizes data center footprint with up to 38TB per square foot

  • Energy efficient storage operating at under 4W
  • Highest nearline reliability with an MTBF of 1.2M hours
  • 3Gb/s SATA
Seagate Constellation drives are the most energy efficient enterprise drives on the market. Now available in capacities to 500GB, they offer reliable storage for high capacity servers and storage arrays in a minimal footprint.

Key Features and Benefits

  • Industrys leading 2.5-inch, mainstream capacity, 15mm enterprise-class nearline drive for dense, space-constrained data centers
  • Lowest operating power at less than 4 watts and up to 54 percent additional idle power savings with host-selectable, on-demand PowerChoice feature
  • Industrys highest-reliability in a 7200-RPM drive with a 1.2M-hour mean-time-between-failure (MTBF) rating thats designed for 24x7 operation
  • Best-in-class rotational vibration tolerance ensures unrivalled performance in high spindle-density applications, and multi-drive firmware maximizes system availability
  • SATA 3Gb/s for fast, yet economical Tier 2/nearline performance

Seagate Constellation.2 SATA 6Gb/s 1TB Hard Drive with Secure Encryption

ST91000641NS

Specifications  
Model Number ST91000641NS
Interface SATA 6Gb/s
Cache 64MB
Capacity 1TB
Areal density (avg) 417Gb/in2
Guaranteed Sectors 1,953,525,168
PHYSICAL  
Height (maximum) 15.00mm (0.591 in)
Width (maximum) 70.10mm (2.760 in)
Length (maximum) 100.45mm (3.955 in)
Weight (typical) 200g (0.441 lb)
PERFORMANCE  
Spin Speed (RPM) 7200 RPM
Sustained data transfer rate 115MB/s
Average latency 4.16ms
Random read seek time 7.5ms
Random write seek time 8.5ms
I/O data transfer rate 600MB/s
Unrecoverable read errors 1 in 1015
RELIABILITY  
MTBF 1,400,000 hours
Annual Failure Rate 0.62%
POWER  
12V start max current 0.85A
5V start max current 0.51A
Average idle power 2.95W
Average operating power 5.43W
ENVIRONMENT  
Ambient Temperature  
Operating 560C
Nonoperating -4070C
Maximum operating temperature change 20C per hour
Maximum nonoperating temperature change 20C per hour
Shock  
Operating Shock (max) 70 / 40 Gs for 2ms
Nonoperating Shock (max) 400 Gs for 2ms
ACOUSTICS  
Acoustics (Idle Volume) 2.2 bels
Acoustics (Seek Volume) 2.8 bels
Features  
Storage Type HDD
Encryption X

Specification Sheets / Installation guides / Associated files

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Warranty: 3 Years Limited Warranty

Full manufacturers warranty details are available at the manufacturers (Seagate) web site.

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