Seagate ST9500420AS Momentus 7200.4 SATA Product Manual - Page 7

Introduction - read speed

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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate Momentus® 7200.4 SATA model drives: Standard models ST9500420AS ST9320423AS ST9250410AS ST9160412AS ST9120410AS Free Fall Protection models ST9500420ASG ST9320423ASG ST9250410ASG ST9160412ASG ST9120410ASG These drives provide the following key features: • 7,200-RPM spindle speed. • 16-Mbyte buffer. • Free Fall Protection (on ST9500420ASG, ST9320423ASG, ST9250410ASG, ST9160412ASG, and ST9120410ASG models only) • Quiet operation. Fluid Dynamic Bearing (FDB) motor. • High instantaneous (burst) data-transfer rates (up to 3.0 Gbits per second). • Perpendicular recording technology. • State-of-the-art cache and on-the-fly error-correction algorithms. • Native Command Queuing (NCQ) with command ordering. • Full-track multiple-sector transfer capability without local processor intervention. • 1,000 Gs nonoperating shock and 350 Gs of operating shock. • SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns. • The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the industry's most comprehensive protection for disc drives. • Support for S.M.A.R.T. drive monitoring and reporting. • Support for Read Multiple and Write Multiple commands. Momentus 7200.4 SATA Product Manual, Rev. A 1

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Momentus 7200.4 SATA Product Manual, Rev. A
1
1.0
Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
Momentus
®
7200.4 SATA model drives:
These drives provide the following key features:
•
7,200-RPM spindle speed.
•
16-Mbyte buffer.
•
Free Fall Protection (on ST9500420ASG,
ST9320423ASG, ST9250410ASG, ST9160412ASG, and
ST9120410ASG models only)
•
Quiet operation. Fluid Dynamic Bearing (FDB) motor.
•
High instantaneous (burst) data-transfer rates (up to 3.0 Gbits per second).
•
Perpendicular recording technology.
•
State-of-the-art cache and on-the-fly error-correction algorithms.
•
Native Command Queuing (NCQ) with command ordering.
•
Full-track multiple-sector transfer capability without local processor intervention.
•
1,000 Gs nonoperating shock and 350 Gs of operating shock.
•
SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
•
The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the
industry’s most comprehensive protection for disc drives.
•
Support for S.M.A.R.T. drive monitoring and reporting.
•
Support for Read Multiple and Write Multiple commands.
Standard models
Free Fall Protection models
ST9500420AS
ST9500420ASG
ST9320423AS
ST9320423ASG
ST9250410AS
ST9250410ASG
ST9160412AS
ST9160412ASG
ST9120410AS
ST9120410ASG