WD Caviar Blue 250 GB SATA Hard Drives ( 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

Ccoustics
	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