GX-9901-DX Gundam Double X
The successor unit to the Gundam X, developed from Jamil Neate's old unit. It features the new Twin Satellite Cannon that boasts more than double the power of the already powerful Satellite Cannon, and can be fired sequentially up to three times. After being stolen from the New Earth Alliance, the Double X is piloted by Garrod Ran.
The Double X can combine with the G-Falcon to form the G-Falcon Double X, which has improved firepower (including the enhancement of the Twin Satellite Cannon's output) and a transformation system that grants it improved speed and atmospheric reentry ability.