Seagate ST3750840ACE manual DB35.3 Series Pata Product Manual, Rev. B

Drive specification	ST3320820ACE	ST3300820ACE	ST3250820ACE
Vibration, nonoperating	5–22 Hz: 0.25 Gs, Limited displacement
	22–350 Hz: 5.0 Gs
	350–500 Hz:: 1.0 Gs
Drive acoustics, sound power
Idle**	2.7 bels (typical)	2.5 bels (typical)
	2.9 bels (max)	2.7 bels (max)
CE seek profile	2.8 bels (typical)	2.7 bels (typical)
	2.9 bels (max)	2.8 bels (max)
Nonrecoverable read errors	1 per 1014 bits read
Annualized Failure Rate (AFR)***	0.68%
Warranty	5 years on distribution units.
	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.
Contact start-stop cycles (25°C, 50% rel. humidity)	50,000

*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.

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