USB 2.0 at top speed is 480 megabits per second. Let's look at the transport speed of SATA. 1,500 megabits per second. While only theoretical it does slow the drive to about 1/2 of the internals.
Bob
i was wondering this because on the mac mini i dont want to buy a large hard drive right away if the performance would be the same i will just put media on there

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