Seagate Constellation.2 internal hard drive 1 TB 7200 RPM 64 MB 2.5" SAS

SKU
ST91000640SS
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In stock
1 TB, 2.5", SAS, 64MB
UNSPSC: 43201803
More Information
SKU ST91000640SS
EAN 0807320171539
Manufacturer Seagate
Availability In Stock
- Second generation of the first 2.5 inch, mainstream capacity, 15mm
z-height, nearline drive for space-constrained data centres
- Choose 6Gb/s SAS for data integrity, scalability and fast data access,
or SATA 6Gb/s for fast, economical Tier-2/nearline performance
- The industry’s most reliable 7,200 RPM drive, designed for 24×7
operation with an MTBF of 1.4M hours and an AFR of 0.62%
- Enterprise-class firmware and best-in-class rotational vibration
tolerance maximise system availability and performance
- Lowest operating power (under 6.4W) and enhanced PowerChoice™
options for additional power savings during slow or idling periods;
Workload Management™ technology helps systems to keep drives cool
- Self-Encrypting Drive (SED) option (AES-256) cuts IT drive retirement
costs while protecting data securely where it lives — on the drive1
- FIPS 140-2 Validated™ drives protect data classed as Sensitive but
- Unclassified and Protected1
Hard drive
Component forServer/workstation
HDD interface transfer rate6 Gbit/s
Write seek time9.5 ms
Read seek time8.5 ms
Average latency4.16 ms
Bytes per sector512
Mean time between failures (MTBF)1400000 h
HDD speed7200 RPM
HDD size2.5"
HDD capacity1 TB
Features
TypeHDD
Component forServer/workstation
HDD interface transfer rate6 Gbit/s
InterfaceSAS
Write seek time9.5 ms
Read seek time8.5 ms
Average latency4.16 ms
Bytes per sector512
Mean time between failures (MTBF)1400000 h
HDD speed7200 RPM
HDD size2.5"
HDD capacity1 TB
Storage drive buffer size64 MB
Power
Power consumption (typical)6.4 W
Power consumption (idle)3.85 W
Operational conditions
Operating temperature (T-T)5 - 60 °C
Operating vibration0.5 G
Operating shock70 G
Non-operating vibration3 G
Non-operating shock400 G
Technical details
Quantity per pack1 pc(s)
InterfaceSAS
Mean time between failures (MTBF)1400000 h
Weight & dimensions
Width2.76" (70.1 mm)
Weight7.05 oz (200 g)
Height0.591" (15 mm)
Depth3.96" (100.5 mm)
Packaging data
Quantity per pack1 pc(s)
Other features
InterfaceSAS

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SKU
ST91000640SS
WD20EFRX
WD4000FYYZ
0A89471-AX
AXHD2TB7235A36D
WD2003FZEX
Manufacturer
Seagate
Western Digital
Western Digital
Axiom
Axiom
Western Digital
HDD capacity
1000GB to 1500GB
2000GB to 2500GB
2500GB and more
1000GB to 1500GB
2000GB to 2500GB
2000GB to 2500GB
HDD speed
7200RPM to 10000RPM
5400RPM to 5900RPM
7200RPM to 10000RPM
7200RPM to 10000RPM
7200RPM to 10000RPM
7200RPM to 10000RPM
Component for
Server/workstation
NAS
N/A
N/A
N/A
PC