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What is the unit of measurement for hard drive speed?

April 26, 2017measurement speed

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What is the unit of measurement for hard drive speed?

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Another unit of measurement for hard drive speed is the interface speed, which is how fast the hard drive can transfer data to or from the rest of the computer. Most IDE drives are ATA-100 meaning they have a peak transfer speed of around 100MB/sec. A more modern drive would be Serial ATA, or SATA. SATA comes in a few different speeds: SATA-150 (150MB/sec), SATA-300 (300MB/sec), and SATA-3GB (3GB/sec).