Barracuda 7200.7 Serial ATA Product Manual, Rev. N 1
1.0 Introduction
This manual describes the functional, mechanical and inte rface specifications for the following Seagate
Barracuda® 7200.7 Serial ATA model drives:
Table 1: Barracuda 7200.7 Serial ATA models
[1] OEM model that may support NCQ
These drives provide the following key features:
• 7,2 00 RPM sp ind le sp eed
• 8 Mbyte buffer (ST3200822AS, ST3160827AS, ST3160023AS, ST3120827AS, ST3120 026AS,
ST380817AS, ST380013AS and ST340111AS models)
• 2 M byte buffer (ST3160021AS, ST3120022AS, ST380011AS, and ST34 0014AS models)
• Hig h instantaneous (burst) data-transfer rates (up to 150 Mbytes per s econd).
• Gian t magnetoresistive (GMR) recording heads and EPRM L technology, provide the drives with increased
areal density.
• State-of-the-art cache a nd on-the-fly error-correction algorithms.
• Full -track multiple-sector transfer capability without local proces sor intervention.
• Quie t operation.
• 350 Gs nonoperating shock.
• Se aTools diagnostic software performs a drive self-test that eliminates unnecessary drive retu rns.
• The 3D Defe nse System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the
industry’s most comprehensive protection for disc drives.
• Su pport for S.M.A.R.T. drive monitoring and reporting.
• Su pport for Read Multiple and Write Multiple commands.
• Nati ve Command Queing enabled on some models.
OEM models Distribution models
not supporting NCQ Distribution models
supporting NCQ
ST3200822AS ST380013AS [1] ST3200822AS ST3160827AS
ST3160023AS [1] ST380011AS [1] ST3160023AS ST3120827AS
ST3160021AS [1] ST340111AS [1] ST3120026AS ST380817AS
ST3120026AS [1] ST340014AS [1] ST380013AS
ST3120022AS [1]