WD Scorpio Blue 500GB 2.5'' HD

Performance Specifications
	Rotational Speed	5,400 RPM (nominal)
	Buffer Size	8 MB
	Average Latency	5.50 ms (nominal)

Seek Times
	Read Seek Time	12.0 ms
	Track-To-Track Seek Time	2.0 ms (average)

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
	User Sectors Per Drive	976,773,168

Physical Dimensions
English
	Height	0.374 Inches
	Length	3.94 Inches
	Width	2.75 Inches
	Weight	0.26 Pounds

Metric
	Height	9.5 mm
	Length	100.2 mm
	Width	69.85 mm
	Weight	0.117 kg

Environmental Specifications
Acoustics
	Idle Mode	24 dBA (average)
	Seek Mode 0	26 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

Humidity
	Operating	8% to 95% Non-condensing
	Non-operating	5-95% RH non-condensing

Altitude (English)
	Operating	-1,000 feet to 10,000 feet
	Non-operating	-1,000 feet to 40,000 feet

Altitude (Metric)
	Operating	-305M to 3,050M
	Non-operating	-305M to 12,200M

Vibration
	Operating	0.00459 g²/Hz (10 to 500 Hz)
	Non-operating	0.05102 g²/Hz (10 to 500 Hz)

Electrical Specifications
Current Requirements
	5 VDC
	Read/Write	500 mA
	Idle	400 mA
	Standby	50 mA
	Sleep	20 mA

	Power Dissipation
	Read/Write	2.50 Watts
	Idle	0.85 Watts
	Standby	0.25 Watts
	Sleep	0.10 Watts

As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, megabit per second (Mb/s) = one million bits per second, and gigabit per second (Gb/s) = one billion bits per second.