Manufacturer's Specs

General
Interface	Serial ATA 1.5 Gbps
Buffer DRAM Size	8 MB
Byte per Sector	512 bytes
Capacity	250 GB
Rotational Speed	5400 RPM
Performance
Average Latency	5.6 ms
Data Transfer Rate / Buffer to/from Host(Max.)	150MB/s
Data Transfer Rate / Media to/from Buffer(Max.)	740Mbits/s
Average Seek time(typical)	12 ms
Power
Standby (typical)	0.25 W
Read/Write (typical)	2.0 W
Sleep (typical)	0.2 W
Spin-up Current (Max.)	900 mA
Idle (typical)	0.6 W
Seek (typical)	2.2 W
Voltage	+5V+-5%
Acoustics
Idle	2.4Bel
Performance Seek	2.6Bel
Reliability
Non-recoverable Read Error	1 sector in 10^14 bits
Physical
Width	69.85 mm
Length	100 mm
Height (Max.)	9.5 mm
Weight (avg.)	102 g

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