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Seagate Constellation.2 internal hard drive 1 TB 7200 RPM 64 MB 2.5" SAS
SKU
ST91000640SS
| 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
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 for | Server/workstation |
| HDD interface transfer rate | 6 Gbit/s |
| Write seek time | 9.5 ms |
| Read seek time | 8.5 ms |
| Average latency | 4.16 ms |
| Bytes per sector | 512 |
| Mean time between failures (MTBF) | 1400000 h |
| HDD speed | 7200 RPM |
| HDD size | 2.5" |
| HDD capacity | 1 TB |
| Features | |
| Type | HDD |
| Component for | Server/workstation |
| HDD interface transfer rate | 6 Gbit/s |
| Interface | SAS |
| Write seek time | 9.5 ms |
| Read seek time | 8.5 ms |
| Average latency | 4.16 ms |
| Bytes per sector | 512 |
| Mean time between failures (MTBF) | 1400000 h |
| HDD speed | 7200 RPM |
| HDD size | 2.5" |
| HDD capacity | 1 TB |
| Storage drive buffer size | 64 MB |
| Power | |
| Power consumption (typical) | 6.4 W |
| Power consumption (idle) | 3.85 W |
| Operational conditions | |
| Operating temperature (T-T) | 5 - 60 °C |
| Operating vibration | 0.5 G |
| Operating shock | 70 G |
| Non-operating vibration | 3 G |
| Non-operating shock | 400 G |
| Technical details | |
|---|---|
| Quantity per pack | 1 pc(s) |
| Interface | SAS |
| Mean time between failures (MTBF) | 1400000 h |
| Weight & dimensions | |
| Width | 2.76" (70.1 mm) |
| Weight | 7.05 oz (200 g) |
| Height | 0.591" (15 mm) |
| Depth | 3.96" (100.5 mm) |
| Packaging data | |
| Quantity per pack | 1 pc(s) |
| Other features | |
| Interface | SAS |
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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
|





