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Nothing to much else to say about this
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40-pin ribbion cable
Could hold up to 504 MB -
New Features known as EIDE
Higher Capacity with LBA
Sector Translation -
Sam 40-pin interface and master/slave jumpers
Different BIOS support
Increased Speeds -
Self Monitoring, Analysis, and Reporting Technology
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Ultra DMA mode 0: 16.7 MBps
Ultra DMA mode 1: 25.0 MBps
Ultra DMA mode 2: 33.3 MBps -
New Set of BIOS commands
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Ultra DMA mode 3: 44.4 MBps
Ultra DMA mode 4: 66.6 MBps
New 80-wire cable -
Transfer rate up to 100 MBps
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ATA/133
Serial ATA
AHCI
eSATA -
ATA/133 - fastest and probably least adopted of al of the ata speeds. Can runs speeds up to 133 MBps. Serial ATA - host bus adapter, small cable, faster.