Seagate ST38421A - U4 8.4 GB Hard Drive Product Manual page 9

Ultra ata interface drives
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U4 Family Product Manual, Rev. D
Introduction
This manual describes the functional, mechanical and interface specifi-
cations for the U4
ST32112A. These drives provide the following key features:
Low power consumption
Quiet operation
10-5 msec seek time, 5-400-RPM and 256-Kbyte buffer for excellent
desktop performance
High instantaneous (burst) data-transfer rates (up to 66.6 Mbytes per
second) using Ultra DMA mode 4
300 Gs nonoperating shock
Full-track multiple-sector transfer capability without local processor
intervention
State-of-the-art cache and on-the-fly error-correction algorithms
MR recording heads and EPRML technology, which provide the drives
with increased areal density
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)
ST38421A, ST36421A, ST34311A and the
1

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