GX-9901-DX Gundam DOUBLE X is a science fiction anime works after war Gundam mobile suit in X (MS), GX development plan in one body, with Callot driving. In the Earth Federation army in the Seventh World War, the new MS in order to consolidate its dominant position in the earth and in the A.W.0015.07 by the Earth Federation forces responsible for the development of the. Although the GX-9900 up to X Flash System flash system, but to strengthen the "Hyper Beam Sword high power output beam sword", "Buster Rifle," Launcher Buster rifle "chest", machine gun Launcher "Twin Satellite Cannon satellite microwave cannon". The "satellite microwave cannon" have a strong attack and attack range in satellite energy.
It was Carlo who. The biggest characteristics is a pair of satellite microwave gun and the morphology of MA and GS-9900 G-FALCON fit into. While the roller Leah sea battle, the New Earth Federation forces as a result of the loss of Luo Liya system (L SYSTEM), DX had some flash system are forced to cancel. GX-9901-DX in the "SD Gundam sangokuden", as high as the prototype of Cao cao.