Momentus 4200.2 Product Manual, Rev. C
1
This manual describes the functional, mechanical and interface specifications for the following Seagate®
Momentus 4200.2 drives:
• ST9120824A
• ST9100825A
• ST980829A
• ST960812A
• ST950814A
• ST9402112A
• ST930218A
These drives provide the following key features:
• 4,200-RPM-Class Performance spindle speed. Actual spindle speed is 5,400 RPM.
• 8-Mbyte buffer.
• Quiet operation. Fluid Dynamic Bearing (FDB) motor.
• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.
• Tunneling Magnetoresistive (TMR) recording heads.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Full-track multiple-sector transfer capability without local processor intervention.
• 800 Gs nonoperating shock, and 250 Gs operating shock.
• SeaTools™ diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Support for Read Multiple and Write Multiple commands.
• Support for autodetection of master/slave drives that use cable select (CSEL).
Figure 1. Momentus 4200.2 PATA disc drive