TECH INFO:-

Specifications 320 GB
Model Number ST3320620AS
Interface SATA 3.0Gb/s
PHYSICAL
Height (max) 26.1 mm (1.028 inches)
Width (max) 101.6 mm (4.010 inches)
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 635 grams (1.40 pounds)
Cache 16 MBytes
Capacity 320 GB
Guaranteed Sectors 625,142,448
Number of pins on the I/O connector 22

PERFORMANCE
Spindle Speed 7200 rpm
Native Command Queuing Y
Average latency 4.16 msec
Random read seek time <8.5 msec
Random write seek time <10.0 msec
Maximum interface transfer rate 300 Mbytes/sec.

RELIABILITY
Annual Failure Rate 0.34 %
Unrecoverable read errors 1 in 1014
Average idle current 9.30 watts
Average seek power 12.60 watts
Standby power 0.80 watts
Sleep power 0.807 watts
Maximum start current, DC 2.80 amps

ENVIRONMENT
Temperature
Ambient operating temperature (min) 0 degrees C
Ambient operating temperature (max) 60 degrees C
Ambient nonoperating temperature (min) -40 degrees C
Ambient nonoperating temperature (max) 70 degrees C
Maximum operating temperature change 20 degrees C per hour
Maximum nonoperating temperature change 30 degrees C per hour
Maximum operating case temperature 69 degrees C

Vibration
Operating Shock (max) 68 Gs
Operating shock 2 msec
Nonoperating Shock (max) 350 Gs
Nonoperating shock 2 msec
Operating vibration 0.25 Gs
ACOUSTICS
Acoustics (Idle Volume) 2.5 bels
Acoustics (Seek Volume) 3.0 bels