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What is the difference between ATA/66 & ATA100?

April 26, 2017ATA ata100 difference

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What is the difference between ATA/66 & ATA100?

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An ATA/66 hard drive transfers data at 66MB/Sec and the ATA/100 drive transfers data at 100MB/sec. An ATA/100 hard drive can be used in a computer that supports up to 66MB/sec because all drives are backwards compatible and will run as fast as your controller allows.