Western Digital AV 3.5 320GB 7200rpm 8MB SATA2 (WD3200AVJS)

Performance Specifications  
Rotational Speed IntelliPower *
Buffer Size 8 MB

Transfer Rates
Buffer To Host (Serial ATA) 3 Gb/s (Max)

Physical Specifications  
Formatted Capacity 320,072 MB
Capacity 320 GB
Interface SATA 2 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 0.99 Pounds

Metric
Height 25.4 mm
Length 147 mm
Width 101.6 mm
Weight 0.45 kg

Environmental Specifications  
Shock
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 350G, 2 ms

Acoustics
Idle Mode 22 dBA (average)
Seek Mode 3 22 dBA (average)

Temperature (English)
Operating 32° F to 140° F
Non-operating -40° F to 158° F

Temperature (Metric)
Operating -0° C to 60° C
Non-operating -40° C to 70° C

Humidity
Operating 5-95% RH non-condensing
Non-operating 5-95% RH non-condensing

Vibration
Operating
Linear 20-300 Hz, 0.75 G (0 to peak)
Random 10-300 Hz, 0.008 g / Hz

Electrical Specifications  
Current Requirements
12 VDC
Read/Write 160 mA
Idle 120 mA
Standby 2.9 mA
Sleep 2.9 mA

5 VDC
Read/Write 550 mA
Idle 170 mA
Standby 160 mA
Sleep 160 mA

Power Dissipation
Read/Write 4.7 Watts
Idle 2.3 Watts
Standby 0.80 Watts
Sleep 0.80 Watts

Manufacturer link