2.5" 5,400 RPM SAMSUNG HM641JI 640G Hard Drives

Drive Configurations

Drive Configurations

Capacity *	640G
Interface	SATA 3.0Gbps
Buffer DRAM Size	8 MB
Byte per Sector	512
Rotational Speed	5,400 RPM

Performance Specifications

Performance Specifications

Average Seek time(typical)	12 ms
Data Transfer Rate / Media to/from Buffer(Max.)	138 MB/s
Data Transfer Rate / Buffer to/from Host(Max.)	300 MB/s
Drive Ready Time(typical)	4sec

Reliability Specifications

Reliability Specifications

Non-recoverable Read Error	1 sector in 10^14 bits

Acoustics

Acoustics

Idle	2.4 Bel
Performance Seek	2.6 Bel

Environmental Specifications

Environmental Specifications

Temperature / Operating	5 ~55 ℃
Temperature / Non-operating	-40 ~ 70 ℃
Humidity(non-condensing) / Operating	5 ~ 90 %
Humidity(non-condensing) / Non-operating	5~ 95 %
Liner Shock(1/2 sine pulse) / Operating	400 G
Liner Shock(1/2 sine pulse) / Non-operating	900 G
Vibration / Operating	1.5 Grms
Altitude(relative to sea level) / Operating	-300 to 3000 m
Altitude(relative to sea level) / Non-operating	-400 to 15000 m

Power Requirements

Power Requirements

Voltage	+5V ± 5%
Spin-up Current (Max.)	1000 mA
Seek (typical)	2.5 W
Read/Write (typical)	2.5 W
Idle (typical)	0.85 W
Standby (typical)	0.25 W
Sleep (typical)	0.2 W

Physical Dimension

Physical Dimension

Height (Max.)	9.5 mm
Width	69.85 mm
Length	100 mm
Weight (avg.)	105 g