Seagate ST340815AS, ST3120215AS, ST3120815AS Barracuda 7200.10 Serial ATA Product Manual, Rev. K

Drive specification	ST3320620AS	ST3320820AS
Vibration, operating	5–22 Hz: 0.25 Gs, Limited displacement
	22–350 Hz: 0.50 Gs
	350–500 Hz:: 0.25 Gs
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**	2.5 bels (typical)
	2.9 bels (max)
Performance seek	3.0 bels (typical)
	3.2 bels (max)
Nonrecoverable read errors	1 per 1014 bits read
Annualized Failure Rate (AFR)	0.34%
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 num-
	ber) and country of purchase. The system will display the warranty
	information for your drive.
Contact start-stop cycles	50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the Serial ATA Revision 2.5	Yes
specification

*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.

Barracuda 7200.10 Serial ATA Product Manual, Rev. K 11