Xbox
Released in 2001, the Xbox control pad was the first controller made for the original Xbox. The Xbox controller features two analog sticks, a pressure-sensitive directional pad, two analog triggers, a Back button, a Start button, two accessory slots and six 8-bit analog action buttons (A/Green, B/Red, X/Blue, Y/Yellow, and Black and White buttons). The standard Xbox controller (originally nicknamed the "Fatty" and later the "Duke") was originally the controller bundled with Xbox systems for all territories except Japan.
Xbox One
On August 31, 2015, Microsoft announced Xbox One Elite—a new SKU with a 1 TB solid-state hybrid drive and an Elite controller. It was released in November 2015 and retails for US$499.99. In the US, the Elite bundle was a timed exclusive to GameStop and Microsoft Store.