Gateway 250GB 7200-RPM 80GPP 7M SATA Hard Drive - WD2500JD-22HBB0

Feature	Specification
General
Rotational Speed	7 200 RPM (nominal)
Buffer Size	8 MB
Average Latency	4.20 ms (nominal)
Contact Start/Stop Cycles	50 000 minimum
Seek Times (Average)
Read Seek Time (Average)	8.9 ms
Write Seek Time (Average)	10.9 ms (average)
Track-To-Track Seek Time	2.0 ms (average)
Full Stroke Seek	21.0 ms (average)
Transfer Rates
Buffer To Host (Serial ATA)	1 200 Mbits/s (Max)
Buffer To Disk	748 Mbits/s (Max)
General
Number of Heads (Physical)	6
Formatted Capacity	250 059 MB
Capacity	250 GB
Interface	SATA
Actuator Type	Rotary Voice Coil
Number of Platters	3
Bytes Per Sector	512
User Sectors Per Drive	488 397 168
Servo Type	Embedded
Dimensions - English
Height (English)	1.028 Inches (Max)
Length (English)	5.787 Inches (Max)
Width (English)	4.00 Inches (+/- 0.010 inch)
Weight (English)	1.60 Pounds (+/- .10 lb)
Dimensions - Metric
Height (Metric)	26.1 mm (Max)
Length (Metric)	147 mm (Max)
Width (Metric)	101.6 mm
Weight (Metric)	0.73 kg (+/- .082 kg)
Shock
Operating Shock (Read)	65G 2 ms
Non-operating Shock	250G 2 ms
Acoustics
Idle Mode	33 dBA (average)
Seek Mode 0	36 dBA (average)
Seek Mode 3	35 dBA (average)
Temperature (English)
Operating (English)	41° F to 131° F
Non-operating (English)	-40° F to 149° F
Temperature (Metric)
Operating (Metric)	5° C to 55° C
Non-operating (Metric)	-40° C to 65° C
Humidity
Operating	5-95% RH non-condensing
Non-operating	5-95% RH non-condensing
Altitude (English)
Operating (Metric)	-305M to 3 050M
Non-operating (Metric)	-305M to 12 200M
Altitude (Metric)
Operating (Metric)	-305M to 3 050M
Non-operating (Metric)	-305M to 12 200M
Vibration
Operating
Linear	20-300 Hz 0.75G (0 to peak)
Random	10-300 Hz 0.004 g2/Hz
Non-operating
Low Frequency	5-20 Hz 0.195 inches (double amplitude)
High Frequency	10-300 Hz 5.0G (0 to peak)
Current Requirements
12 VDC
Read/Write	450 mA
Idle	470 mA
Standby	23 mA
Sleep	23 mA
5 VDC
Read/Write	800 mA
Idle	750 mA
Standby	330 mA
Sleep	200 mA
Power Dissipation
Read/Write	12.80 Watts
Idle	9.50 Watts
Standby	1.90 Watts
Sleep	1.30 Watts