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Differences between ata/133 and ultra dma 133

What is the difference between ata/133 and ultra dma 133?

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None. The terms are used interchangeably. In fact, it's hard to find a straight answer on what the difference is. My understanding is that ata/133 is the IDE standard, while ultra DMA 133 is the standard for the interface itself.

This was first published in September 2003

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