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Seagate Constellation.2 2.5" ST91000640NS 1 TB
SATA

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from $33.00 up to $41.00 
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Seagate Constellation.2 2.5" [ST91000640NS]
from $33.00 up to $41.00 
Seagate ST91000640NS
Enterprise (server)
250 GB
SATA
500 GB
SATA
1 TB
SAS
1 TB
SATA
Placement
built-in
Type
HDD
Features
server
Size
1000 GB
Form factor
2.5 "
Connection
SATA3
Cache memory
64 MB
RPM
7200 rpm
Average search time
9 ms
Operation power consumption
5.2 W
Standby power consumption
3.3 W
Shockproof
70 G
Reading noise level
28 dB
Standby mode noise level
22 dB
MTBF
1.4 M h
Added to E-Catalog
july 2011

Reliable, compact and cost-effective 1 TB (1000 GB) enterprise-class internal hard drive from the Seagate Constellation.2 line of 2.5" HDDs, which includes 5 models ranging from 250 GB to 1 TB. This family includes high-quality server drives , the design and firmware of which are optimized for solving problems of long-term storage of information in NAS arrays and servers. They differ from 3.5" server drives in significantly smaller overall dimensions and reduced power consumption.

Designed for 24/7 operation in RAID arrays of blade servers and compact data storages. Standard SATA is used as the connection interface, so the Seagate Constellation.2 2.5" ST91000640NS hard drive can also be installed in ordinary desktop/office PCs and workstations. The classic CMR magnetic recording method provides high read/write speeds, and magnetic platters rotate at a speed of 7200 rpm, which reduces access time. The manufacturer claims best-in-class resistance to rotational vibration, ensuring stable performance when working in arrays of multiple drives.

Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
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Seagate Constellation.2 2.5" ST91000640NS configurations

Price for Seagate Constellation.2 2.5" ST91000640NS
Seagate Constellation.2 2.5" ST9250610NS 250 GB
SATA
from $45.902 offers
Seagate Constellation.2 2.5" ST9500620NS 500 GB
SATA
from $22.003 offers
Seagate Constellation.2 2.5" ST91000640SS 1 TB
SAS
from $32.005 offers
Seagate Constellation.2 2.5" ST91000640NS 1 TB
SATA
from $33.002 offers
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Seagate Constellation.2 2.5" often compared
Seagate Enterprise Capacity 3.5 HDD
Seagate Constellation.2 2.5"
[ST91000640NS]
vs
Seagate Enterprise Capacity 3.5 HDD
[ST1000NM0045]