Digital Trends – I got my first Ultrabook in yesterday â an Asus Zenbook UX21E-DH71 (donât get me started on naming). This is the 11.6-inch Intel Core i7 version, and Asus is putting itself on the map with two screen sizes (adding a 13.3-inch), two processors (the i5 and i7), and two SSD configurations (128GB and 256GB). That boils down to a whopping five model numbers. It sounds complex, but remember the iPod comes in two colors, three memory sizes, and two radio configurations, which should equal 12 configurations⦠but suddenly my head hurts.