The GX-9901-DX Gundam Double X (aka Gundam DX, Double X, DX) is a mobile suit produced by the New United Nations Earth in After War Gundam X, piloted by Garrod Ran.

The GX-9901-DX Gundam DX was created by mobile suit engineers of the newly formed New United Nations Earth (NUNE). NUNE engineers reverse-engineered the MS technology of GX-9900 Gundam X and created a more powerful version from the original. Doubling (if not tripling) the capabilities Gundam X had, they dubbed the unit as Double X.

Double X has largely replicated MS technology off of Gundam X. NUNE engineers installed new solar panels (6 in back, 4 small ones on calves) to increase DX's microwave energy absorption.

• High Grade (HG) series.
• Skill LV.3
• No Cement or Painting Required