A new teardown of the ASUS Zenbook UX21 at AnandTech has shown that its internal design, just like the outside, is very similar to the MacBook Air. Partly out of necessity, the 11-inch ultrabook uses the same basic concept of a two-board core area at the back while the front two thirds are dominated by four discrete lithium batteries. Likewise, it uses the same stick-based SSD format, although here the drives are supplied by ADATA (128GB) and SanDisk (256GB) rather than Samsung and Toshiba.
