Performance specifications 

• Rotational Speed IntelliPower
• Buffer Size 64 MB
• Load/unload Cycles 600,000 minimum 

Transfer rates

• Buffer To Host (Serial ATA) 3 Gb/s (Max) 

Physical specifications 

• Formatted Capacity 2,000,398 MB
• Capacity 2 TB
• Interface SATA 3 Gb/s
• User Sectors Per Drive 3,907,029,168 

Physical dimensions - English

• Height 1.028 Inches
• Depth 5.787 Inches
• Width 4.00 Inches
• Weight 1.61 Pounds 

 Physical dimensions - Metric

• Height 26.1 mm
• Depth 147 mm
• Width 101.6 mm
• Weight 0.73 kg 

Environmental specifications 

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

Acoustics

• Idle Mode 25 dBA (average)
• Seek Mode 0 29 dBA (average)
• Seek Mode 3 26 dBA (average) 

Vibration

Operating

• Linear 20-300 Hz, .75G (0 to peak)
• Random 0.004 g²/Hz (10 to 300 Hz) 

Non-operating

• Low Frequency 0.05 g²/Hz (10 to 300 Hz)
• High Frequency 20-500 Hz, 4.0G (0 to peak) 

Electrical specifications 

Current requirements 12 VDC

• Read/Write 340 mA
• Idle 260 mA
• Standby 5 mA
• Sleep 5 mA

Current requirements 5 VDC

• Read/Write 675 mA
• Idle 140 mA
• Standby 140 mA
• Sleep 140 mA 

Power dissipation

• Read/Write 6.80 Watts
• Idle 3.70 Watts
• Standby 0.80 Watts
• Sleep 0.80 Watts 

As used for storage capacity, one megabyte (Mb) = one million bytes, one gigabyte (Gb) = one billion bytes, and one terabyte (Tb) = one trillion bytes.
Total accessible capacity varies depending on the operating environment.
As used for buffer or cache, one megabyte (Mb) = 1,048,576 bytes.
As used for transfer rate or interface, megabyte per second (Mb/s) = one million bytes per second, megabit per second (Mb/s) = one million bits per second, and gigabit per second (Gb/s) = one billion bits per second.

http://www.wdc.com/en/products/products.aspx?id=40

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