Asus Zenfone 2 Deluxe

The Zenfone 2 Deluxe, which is basically the same as a standard Zenfone 2 except that it comes with a special rear cover featuring a 3D-cut design. This model will be available with up to 4GB of RAM and up to 128GB of storage.

http://liliputing.com/2015/07/asus-unveils-zenfone-2-deluxe-and-laser-editions.html