Gateway 40 GB 7200 RPM SATA Hard Drive With 2 MB Cache - EWD400BD-22LRA0-294

Feature	Specification
Performance
Rotational Speed	7 200 RPM (nominal)
Buffer Size	2 MB
Average Latency	4.20 ms (nominal)
Contact Start/Stop Cycles	50 000 minimum
Seek Times
Read Seek Time	8.9 ms
Write Seek Time	10.9 ms (average)
Track-To-Track Seek Time	2.0 ms (average)
Full Stroke Seek	21.0 ms (average)
Transfer Rates (Note: Drives manufactured prior to December 1 2005 have a 150 MB/s buffer to host transfer rate.)
Buffer To Host (Serial ATA)	300 MB/s (max)
Buffer To Disk	748 Mbits/s (max)
Physical
Formatted Capacity	40 020 MB
Capacity	40 GB
Interface	SATA 300 MB/s
Number of Platters	1
User Sectors Per Drive	78 165 360
Dimensions (H × L × W)	Approximately 1.028 × 5.787 × 4.00 inches (26.1 × 147 × 101.6 mm)
Weight	1.60 lbs ±0.10 lb (0.73 kg ±0.082 kg)
Environmental
Shock	Operating (read): 65 G 2 ms Non-operating: 350 G 2 ms
Acoustics	Idle Mode: 30 dBA (average) Seek Mode 0: 32 dBA (average) Seek Mode 3: 31 dBA (average)
Temperature	Operating: 41° F to 131° F (5° C to 55° C) Non-operating: -40° F to 149° F (-40° C to 65° C)
Relative Humidity	Operating: 5% to 95% non-condensing Non-operating: 5% to 95% non-condensing
Altitude	Operating: -1 000 feet to 10 000 feet (-305 M to 3 050 M) Non-operating: -1 000 feet to 40 000 feet (-305 M to 12 200 M)
Vibration	Operating: Linear: 10-300 Hz 3.0 G (0 to peak) Random: 10-300 Hz 0.008 g2 / Hz Non-operating: Low Frequency: 5-20 Hz 0.195 inches (double amplitude) High Frequency: 20-300 Hz 4.0 G (0 to peak)
Electrical
12 VDC Current Requirements	Read/Write: 450 mA Idle: 470 mA Standby: 23 mA Sleep: 23 mA
5 VDC Current Requirements	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