From the article: "The not-yet-available 27-in. iMac will continue to sport four external memory slots." Another source: http://www.macrumors.com/2012/10/23/21

From the article: "The not-yet-available 27-in. iMac will continue to sport four external memory slots." Another source: http://www.macrumors.com/2012/10/23/21-5-imac-has-no-user-upgradable-ram-27-has-four-accessible-ram-slots/ http://www.macrumors.com/2012/10/23/21-5-imac-has-no-user-up...