Seagate ST4000DM000, SGTST3000DM0011CH166 Drive specifications summary for 500GB and 320 models

Drive Specifications		www.seagate.com
Table 1 Drive specifications summary for 1000 and 750 models (continued)
Drive Specification	ST31000524AS	ST3750525AS
Startup current (typical) 12V (peak)	2.0A	2.0A
Voltage tolerance (including noise)	5V +10% / -7.5%	5V +10% / -7.5%
	12V +10% / -7.5%	12V +10% / -7.5%
Ambient temperature	0° to 60°C (operating)	0° to 60°C (operating)
	–40° to 70°C (non-operating)	–40° to 70°C (non-operating)
Temperature gradient	20°C per hour max (operating)	20°C per hour max (operating)
	30°C per hour max (non-operating)	30°C per hour max (non-operating)
Relative humidity	5% to 95% (operating)	5% to 95% (operating)
	5% to 95% (non-operating)	5% to 95% (non-operating)
Relative humidity gradient (max.)	30% per hour	30% per hour
Wet bulb temperature (max.)	37.7°C max (operating)	37.7°C max (operating)
	40.0°C max (non-operating)	40.0°C max (non-operating)
Altitude, operating	–304.8m to 3,048m	–304.8m to 3,048m
	(–1000 ft to 10,000+ ft)	(–1000 ft to 10,000+ ft)
Altitude, non-operating	–304.8m to 12,192m	–304.8m to 12,192m
(below mean sea level, max)	(–1000 ft to 40,000+ ft)	(–1000 ft to 40,000+ ft)
Operational Shock (max)	70 Gs at 2ms	70 Gs at 2ms
Non-Operational Shock (max)	300 Gs at 2ms	300 Gs at 2ms
Vibration, operating	2Hz to 22Hz: 0.25 Gs, Limited displace-	2Hz to 22Hz: 0.25 Gs, Limited displacement
	ment	22Hz to 350Hz: 0.50 Gs
	22Hz to 350Hz: 0.50 Gs	350Hz to 500Hz: 0.25 Gs
	350Hz to 500Hz: 0.25 Gs
Vibration, non-operating	5Hz to 22Hz: 3.0 Gs	5Hz to 22Hz: 3.0 Gs
	22Hz to 350Hz: 3.0 Gs	22Hz to 350Hz: 3.0 Gs
	350Hz to 500Hz: 3.0 Gs	350Hz to 500Hz: 3.0 Gs
Drive acoustics, sound power
Idle**	2.6 bels (typical)	2.6 bels (typical)
	2.7 bels (max)	2.7 bels (max)
Seek	2.8 bels (typical)	2.8 bels (typical)
	3.0 bels (max)	3.0 bels (max)
Non-recoverable read errors	1 per 1014 bits read	1 per 1014 bits read
Annulized Failure Rate (AFR)	0.34%	0.34%
Warranty	To determine the warranty for a specific drive, use a web browser to access the following web
	page: support.seagate.com/customer/warranty_validation.jsp
	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 dis-
	play the warranty information for your drive.
Contact start-stop cycles	50,000 at 25°C, 50% rel. humidity	50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the	Yes	Yes
Serial ATA Revision 2.5 specification

*One GB 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.

Table 2 Drive specifications summary for 500GB and 320 models

Drive Specification	ST3500413AS	ST3320413AS
Formatted capacity (512 bytes/sector)*	500GB	320GB
Guaranteed sectors	976,773,168	625,142,448
Heads	2	2
Disks	1	1
Bytes per sector	512	512
Default sectors per track	63	63
Default read/write heads	16	16
Default cylinders	16,383	16,383

12 Barracuda SATA Product Manual, Rev. B