Western Digital 250GB Enterprise 3.5" SATA Hard Disk Drive

 Western Digital 250GB Enterprise 3.5" SATA Hard Disk

ENTERPRISE GRADE
Capacity: 250GB
Speed: 7,200RPM
Interface Types: SATA
Form Factor: 3.5inx1.0in LFF Hard Drive
Sector Size: 512 / 512e
Sustained Throughput: 128
Electrical Interface: SATA 600 - 6.0Gbps
On-Board Cache: 64MB

Specifications

InterfaceSATA 6 Gb/s
Formatted capacity251 GB
User sectors per drive490,350,672
Native command queuingYes
SATA latching connectorYes
Form factor3.5-inch
Performance
Max Data transfer rate6 Gb/s
Cache (MB)64
Rotational speed (RPM7200
Average drive ready time (sec)14
Configuration/Organization
Heads/disks1/1
Bytes per sector (STD)512
Reliability/Data Integrity
Load/unload cycles600,000
Non-recoverable read errors per bits read<1 in 1015
Limited warranty (years)5
Power Management
12VDC (A, max)2.25
Average required wats Read/Write6.5 / 6.4
Average required wats Idle4.4
Average required wats Standby0.8
Average required wats Sleep0.8
Environmental Specifications
Operating Temperature (°C)5 to 55
Non-operating Temperature (°C)-40 to 70/td>
Shock (Gs) Operating (2 ms, read/write)30
Shock (Gs) Operating (2 ms, read)65
Shock (Gs) Non-operating (2 ms)350
Average acoustics (dBA) Idle mode27-
Average acoustics (dBA) Performance seek mode30
Average acoustics (dBA) Quiet seek mode29
Physical Dimensions
Height (in./mm, max)1.028/26.1
Length (in./mm, max)5.787/147
Width (in./mm, ± .01 in.)4/101.6