Твърд диск 4TB WD Purple, SATA 6Gb/s, 5400rpm, 64MB, 3.5"(8.89 cm)

Product Specifications
Interface SATA 6 Gb/s

Performance Specifications
Rotational Speed IntelliPower *
Buffer Size 64 MB
Load/unload Cycles 300,000 minimum

Transfer Rates
Buffer To Host (Serial ATA) 6 Gb/s (Max)

Physical Specifications
Capacity 4 TB
Form Factor 3.5 Inch
User Sectors Per Drive 7,814,037,168

Physical Dimensions
English
Height 1.028 Inches
Depth 5.787 Inches
Width 4.00 Inches
Weight 1.50 Pounds
Metric
Height 26.1 mm
Depth 147 mm
Width 101.6 mm
Weight 0.68 kg

Environmental Specifications
Shock
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 250G, 2 ms

Acoustics
Idle Mode 26 dBA (average)
Seek Mode 0 27 dBA (average)

Temperature (English)
Operating 32° F to 149° F
Non-operating -40° F to 158° F

Temperature (Metric)
Operating -0° C to 65° C
Non-operating -40° C to 70° C

Electrical Specifications
Current Requirements
Power Dissipation
Read/Write 5.10 Watts
Idle 4.50 Watts
Standby 0.50 Watts
Sleep 0.50 Watts
http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-800012.pdf

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