WD AV-25 2.5-inch SATA hard drives are specially engineered to offer cool quiet operation while providing
maximum reliability in 24x7 always-on environments. With support for up to five simultaneous HD video
streams, these drives are perfect for DVRs, set-top boxes and digital video surveillance.

Performance Specifications
Rotational Speed 5,400 RPM (nominal)
Buffer Size 32 MB
Average Latency 4.20 ms (nominal)
Load/unload Cycles 600,000 minimum
Acoustics (Sone) < 1
Transfer Rates
Buffer To Host (Serial ATA) 3 Gb/s (Max)
Physical Specifications
Formatted Capacity 500,107 MB
Capacity 500 GB
Interface SATA 3 Gb/s
Form Factor 2.5-inch Drive
User Sectors Per Drive 976,773,168
Physical Dimensions
English
Height 0.374 Inches
Depth 3.94 Inches
Width 2.75 Inches
Weight 0.22 Pounds
Metric
Height 9.5 mm
Depth 100.2 mm
Width 69.85 mm
Weight 0.10 kg
Environmental Specifications
Shock
Operating Shock (Read) 350G, 2ms
Non-operating Shock 1000G, 2 ms
Acoustics
Idle Mode 22 dBA (average)
Seek Mode 0 25 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
Electrical Specifications
Current Requirements
Power Dissipation
Read/Write 1.6 Watts
Idle 0.65 Watts
Standby 0.20 Watts
Sleep 0.20 Watts