The MacBook Retina is designed to be thin. It is 13.1 mm at its thickest point. It has an Intel Core M processor, which is designed for computers like this and does not need a fan or something else to cool it. It has a 12-inch 2304x1440 "Retina Display", a keyboard, and a trackpad that is able to do different things if you put more pressure on it. It has a different battery than in other Apple devices because it is so thin. It has one USB "Type C" port, and a headphone jack.