Does Apple hate connectivity standards? Always seems that way. So OWC is now offering an inexpensive option to fix yet anothet Apple design flaw. For just $169, plus shipping, the company will cut a small hole in the bottom grill and install the missing eSATA port.
The only problem is that the port isn’t port-multiplication-compatible so it won’t work properly with most multi-drive RAID enclosures. Still, if you want it, they will do it. Like Burger King, you can have your iMac your way.