Hard Drive Specifications



     NAME             Caviar               Caviar               Caviar              Caviar               Caviar               Caviar               Caviar
                       365                  425                  540                  635                  700                  850                 1080

 MODEL NUMBER        WDAC1365             WDAC1425             WDAC2540            WDAC2635             WDAC2700             WDAC2850             WDAC31000

  FORM FACTOR        3.5-Inch             3.5-Inch             3.5-Inch            3.5-Inch             3.5-Inch             3.5-Inch             3.5-Inch

   INTERFACE           EIDE                 EIDE                 EIDE                EIDE                 EIDE                 EIDE                 EIDE

   FORMATTED
   CAPACITY           365.4                426.8                540.8                639.9                730.8                853.6               1083.8
     (MB)

    AVERAGE
   READSEEK           10 ms                10 ms                10 ms                10 ms                10 ms                10 ms                10 ms
     TIME

    CACHING         Cacheflow3           Cacheflow3           Cacheflow3          Cacheflow3           Cacheflow3           Cacheflow3           Cacheflow3

     HOST           5.26 MB/s            5.26 MB/s            5.26 MB/s            5.26 MB/s            5.26 MB/s            5.26 MB/s            5.26 MB/s
                   (sustained)          (sustained)          (sustained)          (sustained)          (sustained)          (sustained)          (sustained)

   TRANSFER     11.1 MB/s (Mode 3    11.1 MB/s (Mode 3    11.1 MB/s (Mode 3    11.1 MB/s (Mode 3    11.1 MB/s (Mode 3    11.1 MB/s (Mode 3    11.1 MB/s (Mode 3
                       PIO)                 PIO)                 PIO)                PIO)                 PIO)                 PIO)                 PIO)

  RATE (MB/s)   13.3 MB/s (Mode 1    13.3 MB/s (Mode 1    13.3 MB/s (Mode 1    13.3 MB/s (Mode 1    13.3 MB/s (Mode 1    13.3 MB/s (Mode 1    13.3 MB/s (Mode 1
                       DMA)                 DMA)                 DMA)                DMA)                 DMA)                 DMA)                 DMA)

  BUFFER SIZE
     (KB)              64K                  64K                  64K                  64K                  64K                  64K                  64K

  ROTATIONAL
     SPEED           4500 RPM             4500 RPM             4500 RPM            4500 RPM             4500 RPM             4500 RPM             4495 RPM

  DUAL DRIVE
    SUPPORT            YES                  YES                  YES                  YES                  YES                  YES                  YES

  LBA SUPPORT          YES                  YES                  YES                  YES                  YES                  YES                  YES

 CABLE SELECT
    (CSEL)             YES                  YES                  YES                  YES                  YES                  YES                  YES

   AUTO HEAD
     PARK              YES                  YES                  YES                  YES                  YES                  YES                  YES

     POWER       +5 VDC; +12 VDC      +5 VDC; +12 VDC      +5 VDC; +12 VDC      +5 VDC; +12 VDC      +5 VDC; +12 VDC      +5 VDC; +12 VDC      +5 VDC; +12 VDC

                       4.6W                 4.6W                 4.6W                4.6W                 4.6W                 4.6W                 4.6W
     POWER      (READ/WRITE/IDLE);   (READ/WRITE/IDLE);   (READ/WRITE/IDLE);  (READ/WRITE/IDLE);   (READ/WRITE/IDLE);   (READ/WRITE/IDLE);   (READ/WRITE/IDLE);
  DISSIPATION          0.5W                 0.5W                 0.5W                0.5W                 0.5W                 0.5W                 0.5W
                 (STANDBY/SLEEP);     (STANDBY/SLEEP);     (STANDBY/SLEEP);    (STANDBY/SLEEP);     (STANDBY/SLEEP);     (STANDBY/SLEEP);     (STANDBY/SLEEP);
                  12.7W (SPINUP)       12.7W (SPINUP)       12.7W (SPINUP)      12.7W (SPINUP)       12.7W (SPINUP)       12.7W (SPINUP)       12.7W (SPINUP)

     SHOCK        10G Operating;       10G Operating;       10G Operating;      10G Operating;       10G Operating;       10G Operating;       10G Operating;
                150G Non-Operating   150G Non-Operating   150G Non-Operating  150G Non-Operating   150G Non-Operating   150G Non-Operating    70G Non-Operating

                    Operating:           Operating:           Operating:          Operating:           Operating:           Operating:           Operating:
                 5-20 HZ, 0.037"      5-20 HZ, 0.037"      5-20 HZ, 0.037"      5-20 HZ, 0.037"      5-20 HZ, 0.037"      5-20 HZ, 0.037"      5-20 HZ, 0.037"
                (Double Amplitude)   (Double Amplitude)   (Double Amplitude)  (Double Amplitude)   (Double Amplitude)   (Double Amplitude)   (Double Amplitude)
                 20-300 HZ, 0.75G     20-300 HZ, 0.75G     20-300 HZ, 0.75G    20-300 HZ, 0.75G     20-300 HZ, 0.75G     20-300 HZ, 0.75G     20-300 HZ, 0.75G
   VIBRATION         (Peak);              (Peak);              (Peak);              (Peak);              (Peak);              (Peak);              (Peak);
                  Non-Operating:       Non-Operating:       Non-Operating:      Non-Operating:       Non-Operating:       Non-Operating:       Non-Operating:
                 5-20 HZ, 0.195"      5-20 HZ, 0.195"      5-20 HZ, 0.195"      5-20 HZ, 0.195"      5-20 HZ, 0.195"      5-20 HZ, 0.195"      5-20 HZ, 0.195"
                (Double Amplitude)   (Double Amplitude)   (Double Amplitude)  (Double Amplitude)   (Double Amplitude)   (Double Amplitude)   (Double Amplitude)
                  20-500 HZ, 4G        20-500 HZ, 4G        20-500 HZ, 4G        20-500 HZ, 4G        20-500 HZ, 4G        20-500 HZ, 4G        20-500 HZ, 4G
                      (Peak)               (Peak)               (Peak)              (Peak)               (Peak)               (Peak)               (Peak)

    LENGTH       5.75 Inches (146     5.75 Inches (146     5.75 Inches (146    5.75 Inches (146     5.75 Inches (146     5.75 Inches (146     5.75 Inches (146
                       mm)                  mm)                  mm)                  mm)                  mm)                  mm)                  mm)

     WIDTH      4.0 Inches (101.6    4.0 Inches (101.6    4.0 Inches (101.6    4.0 Inches (101.6    4.0 Inches (101.6    4.0 Inches (101.6    4.0 Inches (101.6
                       mm)                  mm)                  mm)                  mm)                  mm)                  mm)                  mm)

    WEIGHT       1.0 lb (.453 kg)     1.0 lb (.453 kg)     1.0 lb (.453 kg)    1.0 lb (.453 kg)     1.0 lb (.453 kg)     1.0 lb (.453 kg)     1.25 lb (.567 kg)


     MTBF            300,000              300,000              300,000              300,000              300,000              300,000              250,000

   WARRANTY           3 Year               3 Year               3 Year              3 Year               3 Year               3 Year               3 Year