Seagate ST9320421AS, 7200RPM, 3.0Gp/s, 320GB SATA 2.5 HDD

  SEAGATE ST9320421AS

   Disk Family

  Momentus 7200.3 320421

   Form Factor

  2.5"

   Capacity

  320 GB (320 x 1 000 000 000 bytes)

   Number Of Disks

  2

   Number Of Heads

  4

   Rotational Speed

  7200 RPM

   Rotation Time

  8.33 ms

   Average Rotational Latency

  4.17 ms

   Disk Interface

  Serial-ATA/300

   Buffer-Host Max. Rate

  300 MB/seconds

   Buffer Size

  16384 KB

   Width

  69.85 mm (2.75 inch)

   Depth

  100.5 mm (3.96 inch)

   Height

  9.5 mm (0.37 inch)

   Weight

  110 grams (0.24 pounds)

   Acoustic (Idle)

  2.3 Bel

   Acoustic (Min performance and volume)

  2.5 Bel

   Acoustic (Max performance and volume)

  3.0 Bel

   Required Power For Spinup

  1200 mA

   Power Required (Seek)

  2.4 W

   Power Required (Idle)

  1.2 W

   Power Required (Standby)

  0.36 W

   Manufacturer

  Seagate Technology