Твърд диск 250GB WD Caviar® Blue™, refurbished, SATA 6Gb/s, 7200rpm, 16MB

WD Caviar Blue 250 GB SATA Hard Drives
(WD2500AAKX)

Performance Specifications
Rotational Speed 7,200 RPM (nominal)
Buffer Size 16 MB
Load/unload Cycles 300,000 minimum

Transfer Rates
Transfer Rate (Buffer To Disk) 126 MB/s (Max)

Physical Specifications
Formatted Capacity 250,059 MB
Capacity 250 GB
Interface SATA 6 Gb/s
User Sectors Per Drive 488,397,168

Physical Dimensions
Height 26.1 mm
Depth 147 mm
Width 101.6 mm
Weight 0.69 kg

Environmental Specifications

Shock
Operating Shock (Read) 30G, 2 ms
Non-operating Shock 300G, 2 ms

Acoustics
Idle Mode 28 dBA (average)
Seek Mode 0 33 dBA (average)

Temperature (Metric)
Operating -0° C to 60° C
Non-operating -40° C to 70° C

Electrical Specifications

Current Requirements

Power Dissipation
Read/Write 6.80 Watts
Idle 6.10 Watts
Standby 0.70 Watts
Sleep 0.70 Watts

http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-701277.pdf

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