My late-2009 27″ Intel iMac now has an eSATA port. I’m documenting how I did it here mainly for posterity. Although it works fine, I cannot recommend that others attempt to perform the same surgery on their own crazy-expensive Apple computers. eSATA mods like this won’t be satisfying to most users, and the operation is risky and destructive enough that non-crazy people shouldn’t attempt it!
