Xbox Darkroom on Twitter: "New arrival: Unnamed prototype Xbox Duke controller. I believe this is the same shell/jewel revision as the one located at the @museumofplay. I've been swamped with work projects
Added a second brand new prototype alpha Xbox controller to the collection! : r/gamecollecting
Alienware's gaming controller prototype is what Microsoft should've built ages ago | TechRadar
List of Prototype Xbox 360 Controllers | Xbox Wiki | Fandom
Customize a Limited Edition Redfall Xbox Controller | Xbox