Seagate ST3320820NS, ST3250820NS, ST3250620NS, ST3320620NS, ST3750640NS, ST3750840NS Introduction

1.0Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate Barracuda® ES Serial ATA model drives:

ST3750640NS	ST3500630NS	ST3400620NS	ST3320620NS	ST3250620NS
ST3750840NS	ST3500830NS	ST3400820NS	ST3320820NS	ST3250820NS

These drives provide the following key features:

•7,200 RPM spindle speed.

•High instantaneous (burst) data-transfer rates (up to 300 Mbytes per second).

•Perpendicular recording technology provides the drives with increased areal density.

•State-of-the-art cache and on-the-fly error-correction algorithms.

•Native Command Queueing with command ordering to increase performance in demanding applications.

•Full-track multiple-sector transfer capability without local processor intervention.

•Quiet operation.

•SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.

•Support for S.M.A.R.T. drive monitoring and reporting.

•Supports latching SATA cables and connectors.

Barracuda ES Serial ATA Product Manual, Rev. D 1