Storage Capacity (formatted)(1)
320.0 GB
Bytes/Sector 512
Seek Time Track to track 1.5 ms typ.
 Average 12 ms typ. (Read), 14 ms typ. (Write)
 Maximum 22 ms typ.
Average Latency 5.56 ms
Rotational Speed 5,400 RPM
Data Transfer to/from Host 3Gb/sec
Interface SATA rev 2.6
Buffer size(2)
8 MB
Power Requirements Voltage 5 V ± 5%
 Spin-up 1.0 A max
 Read/Write 1.9 W typ.
 Idle(3)
0.6 W typ.
 Standby(3)
0.13 W typ.
 Sleep(3)
0.13 W typ.
Dimensions Height 9.5 mm (0.37 in.)
 Width 70 mm (2.8 in.)
 Depth 100 mm (3.9 in.)
Weight 101 g (3.57 oz.) or less
Ambient Temperature Operating 5°C to 55°C (41°F to 131°F)
 Non-operating -40°C to 65°C (-40°F to 149°F)
 Gradient 20°C (68°F) / H or less
Relative Humidity Operating 8% to 90% RH (non-condensing)
 Non-operating 5% to 95% RH (non-condensing)
 Max wet bulb 29°C (Op.) / 40°C (Non Op.)
Vibration Operating 9.8 m/s² (1.0 G) (5 to 500 Hz)
 Non-operating 49m/s² (5.0 G) (5 to 500 Hz)