Seagate ST9500423AS3 Specifications, Feature Options, Configuration, Reliability/Data Integrity

Momentus®

Specifications		Momentus 5400 Drives			Momentus 7200 Drives
	500GB1	320GB1	250GB1	750GB1	500GB1	250GB1
Feature Options
Standard Models	ST9500325AS	ST9320325AS	ST9250315AS	ST9750420AS3	ST9500423AS3	ST9250410AS
Free-Fall Sensor Models	ST9500325ASG2
Interface	SATA 3Gb/s NCQ	SATA 3Gb/s NCQ	SATA 3Gb/s NCQ	SATA 3Gb/s NCQ	SATA 3Gb/s NCQ	SATA 3Gb/s NCQ
Cache (MB)	8	8	8	16	16	16
Configuration
Bytes per Sector	512	512	512	40963	40963	512
						40963
Reliability/Data Integrity
Head-Rest Method	Quiet Step	Quiet Step	Quiet Step	Quiet Step	Quiet Step	Quiet Step
	Ramp Load	Ramp Load	Ramp Load	Ramp Load	Ramp Load	Ramp Load
Load/Unload Cycles	>600,000	>600,000	>600,000	>600,000	>600,000	>600,000
Nonrecoverable Read Errors	1 per 10E14	1 per 10E14	1 per 10E14	1 per 10E14	1 per 10E14	1 per 10E14
per Bits Read
Annualized Failure Rate (AFR)	0.48%	0.48%	0.48%	0.48%	0.48%	0.48%
Power Management
Power (W)
Seek, Typical	1.54	1.54	1.54	1.5	1.5	1.55
Idle, Typical	0.81	0.81	0.81	0.7	0.7	0.67
Environmental
Temperature (°C)
Operating	0 to 60	0 to 60	0 to 60	0 to 60	0 to 60	0 to 60
Nonoperating	−40 to 70	−40 to 70	−40 to 70	−40 to 70	−40 to 70	−40 to 70
Shock (Gs)
Operating: 2ms	350	350	350	350	350	350
Nonoperating: 1ms	1000	1000	1000	1000	1000	1000
Acoustics (bels—sound power)
Idle, Typical	2.4	2.4	2.4	2.3	2.3	2.3
Seek, Typical	2.6	2.6	2.6	2.5	2.5	2.5
Physical
Height (in/mm)	0.374/9.5	0.374/9.5	0.374/9.5	0.374/9.5	0.374/9.5	0.374/9.5
Width (in/mm)	2.75/69.85	2.75/69.85	2.75/69.85	2.75/69.85	2.75/69.85	2.75/69.85
Depth (in/mm)	3.951/100.35	3.951/100.35	3.951/100.35	3.951/100.35	3.951/100.35	3.951/100.35
Weight (lb/g)	0.218/98.8	0.218/98.8	0.206/93.5	0.254/115	0.238/110	0.227/105
Carton Unit Quantity	50	50	50	50	50	50
Cartons per Pallet	60	60	60	60	60	60
Cartons per Layer	10	10	10	10	10	10

1 One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to drive capacity. 2 Drive with G-Force Protection™ feature

3 Advanced Format (4K) drive with SmartAlign™ technology resolves misalignment conditions.

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© 2013 Seagate Technology LLC. All rights reserved. Printed in USA. Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. G-Force Protection, Momentus, Seagate Secure, SmartAlign and the Think Green logo are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/ or other countries. The FIPS logo is a certification mark of NIST, which does not imply product endorsement by NIST, the U.S., or Canadian governments. All other trademarks or registered trademarks are the property of their respective owners. When referring to drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your computer’s operating system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other functions, and thus will not be available for data storage. Actual data rates may vary depending on operating environment and other factors. The export or re-export of hardware or software containing encryption may be regulated by the U.S. Department of Commerce, Bureau of Industry and Security (for more information, visit www.bis.doc.gov). Seagate reserves the right to change, without notice, product offerings or specifications. DS1701.8-1303US, March 2013