Specifications
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Following are the specifications for the Western Digital® 200-GB 7200 RPM PATA hard drive.

Feature Specification
Performance
Rotational Speed 7,200 RPM (nominal)
Buffer Size 2 MB
Average Latency 4.20 ms (nominal)
Contact Start/Stop Cycles 50,000 minimum
Seek Times
Read Seek Time 8.9 ms
Write Seek Time 10.9 ms (average)
Track-To-Track Seek Time 2.0 ms (average)
Full Stroke Seek 21.0 ms (average)
Transfer Rates
Buffer To Disk 748 Mbits/s (Max)
Buffer to Host (EIDE)
  • Mode 5 Ultra ATA: 100.0 MB/s
  • Mode 4 Ultra ATA: 66.6 MB/s
  • Mode 2 Ultra ATA: 33.3 MB/s
  • Mode 4 PIO: 16.6 MB/s
  • Mode 2 multi-word DMA: 16.6 MB/s
    		•
    Recommended Configuration Parameters
    Cylinders 16,383
    Number of Heads (Logical) 16
    Number of Heads (Physical) 6
    Sectors Per Track 63
    Physical
    Formatted Capacity 200,049 MB
    Capacity 200 GB
    Interface EIDE
    Actuator Type Rotary Voice Coil
    Number of Platters 3
    Bytes Per Sector 512
    User Sectors Per Drive 390,721,968
    Servo Type Embedded
    Dimensions (H × L × W) Approximately 1.028 × 5.787 × 4.00 inches (approximately 26.1 × 147 × 101.6 mm)
    Weight 1.32 Pounds (+/- .10 lb) (0.6 kg (+/- .082 kg))
    Environmental
    Shock
  • Operating (Read): 65G, 2 ms
  • Non-operating: 300G, 2 ms
    		•
    Acoustics
  • Idle Mode: 26 dBA (average)
  • Seek Mode 0: 31 dBA (average)
  • Seek Mode 3: 27 dBA (average)
    		•
    Temperature
  • Operating: 41° F to 131° F (5° C to 55° C)
  • Non-operating: -40° F to 149° F (-40° C to 65° C)
    		•
    Relative Humidity
  • Operating: 5-95% non-condensing
  • Non-operating: 5-95% non-condensing
    		•
    Altitude
  • Operating: -1,000 feet to 10,000 feet (-305 M to 3,050 M)
  • Non-operating: -1,000 feet to 40,000 feet (-305 M to 12,200 M)
    		•
    Vibration
  • Operating:
    • Linear: 20-300 Hz, 0.75 G (0 to peak)
    • Random: 10-300 Hz, 0.004 g² / Hz
  • Non-operating:
    • Low Frequency: 5-20 Hz, 0.195 inches (double amplitude)
    • High Frequency: 20-500 Hz, 4.0G (0 to peak)
    • Electrical
    Current Requirements
  • 12 VDC:
    • Read/Write: 530 mA
    • Idle: 510 mA
    • Standby: 30 mA
    • Sleep: 30 mA
  • 5 VDC:
    • Read/Write: 450 mA
    • Idle: 400 mA
    • Standby: 150 mA
    • Sleep: 120 mA
    		•
    Power Dissipation
  • Read/Write: 8.60 Watts
  • Idle: 8.10 Watts
  • Standby: 1.10 Watts
  • Sleep: 1.00 Watts
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