Seagate ST940814AM manual EE25 Series Product Manual, Rev. E, Drive specification, ST920813AM

Drive specification	ST920813AM	ST920814AM
	(OEM)	(Aftermarket)
Wet bulb temperature	40°C (operating, max)
	40°C (nonoperating, max)
Altitude, operating (at 25°C)	–304.8 m to 4,419.6 m (–1000 ft to 14,500 ft)
	For higher temperature capabilities, See “Temperature vs. altitude capability”
	on page 15.
Altitude, nonoperating (below mean sea level, max)	–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
Shock, operating
at 2 msec	200 Gs max
at 11 msec	110 Gs max
Shock, nonoperating
at 2 msec	800 Gs max
at 1 msec	800 Gs max
at 0.5 msec	400 Gs max
Vibration, operating	2.0 G (10 - 200 Hz)
(max displacement may apply below 10 hz)	1.0 G (200 - 500 Hz)
Vibration, nonoperating	5.0 Gs (0 to peak, 5–500 Hz)
(max displacement may apply below 22 hz)
Drive acoustics, sound power
Idle**	2.3 Bels (typical)
	2.5 Bels (max)
Normal seek	2.5 Bels (typical)
	2.7 Bels (max)
Performance seek	2.8 Bels (typical)
	3.0 Bels (max)
Nonrecoverable read errors	1 per 1014 bits read
Mean Time Before Failure (MTBF)	550,000 power-on hours
	At 8,760 POH (Power On Hours) per year
	Max case temperature: 70°C at the case measurement location shown in
	Figure 3.
Load/Unload (U/UL) cycles
25°C, 50% relative humidity	600,000 software-controlled power on/off cycles
	30,000 hard power on/off cycles
32°C, 80% relative humidity	600,000 software-controlled power on/off cycles
5°C, 80% relative humidity	30,000 hard power on/off cycles
5°C, 10% relative humidity
60°C, 20% relative humidity
Service life	10 years (form, fit, and function replacement)
Warranty	1 year standard (up to 5 years max with additional warranty purchase).
	To determine the warranty for a specific drive, use a web browser to access the
	following web page:
	www.seagate.com/support/service/
	From this page, click on the “Verify Your Warranty” link. You will be asked to
	provide the drive serial number, model number (or part number) and country of
	purchase. The system will display the warranty information for your drive.

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.

**During periods of drive idle, some offline activity may occur, according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.

***Typical host systems will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes will not contribute to battery power consumption.

EE25 Series Product Manual, Rev. E 7