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I want to replace the DVD in my old 2010 mac mini with a SSD but first I would like to know if the two SATA interfaces are equal when it comes to speed.

I would prefer to keep the harddrive on the first interface as it is much easier to change it than is to change the one in the DVD location.

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You can answer this question yourself by running Apple System Profiler/System Information and noting what it reports under the "Serial-ATA" column.

Here is what the report looks like on my MacBook Pro.

enter image description here

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