WD Caviar Blue WD3200AAJS / 320 GB, SATA 3 Gb/s, 8 MB Cache, 7200 RPM 3.5"

Performance Specifications
Transfer Rates
Buffer To Host (Serial ATA)
3 Gb/s (Max)
Physical Specifications
Formatted Capacity
320,072 MB
Capacity
320 GB
Interface
SATA 3 Gb/s
User Sectors Per Drive
625,142,448
Physical Dimensions
English
Height
1.028 Inches
Length
5.787 Inches
Width
4.00 Inches
Weight
1.33 Pounds
Metric
Height
25.4 mm
Length
147 mm
Width
101.6 mm
Weight
0.60 kg
Environmental Specifications
Shock
Operating Shock (Read)
65G, 2 ms
Non-operating Shock
350G, 2 ms
Acoustics
Idle Mode
28 dBA (average)
Seek Mode 0
26 dBA (average)
Seek Mode 3
26 dBA (average)
Temperature (English)
Operating
32° F to 140° F
Non-operating
-40° F to 149° F
Temperature (Metric)
Operating
-0° C to 60° C
Non-operating
-40° C to 65° C
Humidity
Operating
5-95% RH non-condensing
Non-operating
5-95% RH non-condensing
Altitude (English)
Operating
-1,000 feet to 10,000 feet
Non-operating
-1,000 feet to 40,000 feet
Altitude (Metric)
Operating
-305M to 3,050M
Non-operating
-305M to 12,200M
Vibration
Operating
Linear
20-300 Hz, 0.75 G (0 to peak)
Random
7-500 Hz (0.00221 g² / Hz)
Non-operating
Low Frequency
10-300 Hz, 0.195 inches (double amplitude)
High Frequency
300-500 Hz, 5.0G (0 to peak)
Electrical Specifications
Current Requirements
12 VDC
Read/Write
395 mA
Idle
380 mA
Standby
6 mA
Sleep
6 mA
5 VDC
Read/Write
660 mA
Idle
532 mA
Standby
180 mA
Sleep
180 mA
Power Dissipation
Read/Write
7.80 Watts
Idle
7.20 Watts
Standby
0.97 Watts
Sleep
0.97 Watts
As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, megabit per second (Mb/s) = one million bits per second, and gigabit per second (Gb/s) = one billion bits per second.