WESTERN DIGITAL Deskstar 7K2000 2TB SATA-II 3.5" 7200RPM 32MB

Deskstar™ 7K2000

Model(s) HDS722020ALA330

Configuration
Interface SATA 3Gb/s
Capacity (TB) 2
Sector size (bytes) 512
Max. areal density (Gbits/sq. in.) 285

Performance
Data buffer (MB) 32
Rotational speed (RPM) 7200
Media transfer rate (Mbits/s, max) 1621
Interface transfer rate (MB/s, max) 300

Reliability
Error rate (non-recoverable, bits read) 1 in 10
Load/unload cycles (at 40 ̊C) 300,000
Availability (hrs/day x days/wk) 24x7

Acoustics
Idle (Bels, typical) 2.9

Power
Requirement +5 VDC (+/-5%) +12 VDC (+/-10%)
Startup current (A, max.) 1.2 (+5V), 2.0 (+12V)
Idle (W) 7.5

Physical size
z-height (mm) 26.1
Dimensions (width x depth, mm) 101.6 (+/-0.25) x 146
Weight (typical, g, max.) 740
Environmental (operating)
Ambient temperature 5 to 60 oC
Relative humidity (non-condensing) 8% to 90%
Shock (half-sine wave, G (2ms)) 70
Vibration, random (G RMS 5 to 500 Hz) 0.67 (XYZ)

Environmental (non-operating)
Ambient temperature -40 to 70 oC
Relative humidity (non-condensing) 5% to 95%
Shock (half-sine wave, G (1ms)) 300
Vibration, random (G RMS 2 to 200 Hz) 1.04 (XYZ)