Confused about external hard drive speeds

Started Jan 20, 2013 | Discussions thread
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mfait Contributing Member • Posts: 647
Re: Confused about external hard drive speeds

As Bob has mentioned, 7200 rpm drives have a typical transfer rate of 100 MB/s.  5400 rpm drives are on average about 30% slower than 7200 rpm drives.

USB 3.0 peak speed is about 500 MB/s, which is 5 times faster than the bandwidth of the 7200 rpm drives.  The difference is even greater when compared to 5400 rpm drives.

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