Western Digital 250GB SATA III 7200RPM 16MB Caviar Blue (WD2500AAKX)

Performance Specifications

Rotational Speed 7,200 RPM (nominal)

Buffer Size 16 MB

Load/unload Cycles 300,000 minimum

Transfer Rates

Transfer Rate (Buffer To Disk) 126 MB/s (Max)

Physical Specifications

Formatted Capacity 250,059 MB

Capacity 250 GB

Interface SATA 6 Gb/s

User Sectors Per Drive 488,397,168

Physical Dimensions

English

Height 1.028 Inches

Depth 5.787 Inches

Width 4.00 Inches

Weight 1.52 Pounds

Metric

Height 26.1 mm

Depth 147 mm

Width 101.6 mm

Weight 0.69 kg

Environmental Specifications

Shock

Operating Shock (Read) 30G, 2 ms

Non-operating Shock 300G, 2 ms

Acoustics

Idle Mode 28 dBA (average)

Seek Mode 0 33 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

Electrical Specifications

Current Requirements

Power Dissipation

Read/Write 6.80 Watts

Idle 6.10 Watts

Standby 0.70 Watts

Sleep 0.70 Watts