You can turn this modular clamp-on controller into an N64 or GameCube gamepad

The X5 Alteron works with smartphones and tablets, and it can replace faulty Joy-Cons on your Nintendo Switch.

GameSir, Hyperkin Unveil Jaw-Dropping Switch 2 And Mobile Controller

The GameSir x Hyperkin X5 Alteron looks too good to be true, but it has the hallmarks of a perfect pad for mobile and Switch ...

"Two Premier Brands. One Mobile Controller" - GameSir and Hyperkin's modular gamepad could take over the market

"A collaborative partner project from GameSir × Hyperkin, merging two industry leaders' expertise for a one-of-a-kind gaming ...

CES 2026: Hyperkin and Gamesir made a modular game controller for your smartphone, tablet and even your Switch

The X5 Alteron may be the world's first fully modular mobile games controller, with swap-out button arrays and sticks.
Player.One on MSN

CES 2026: GameSir, Hyperkin Reveals X5 Alteron, World's First Fully Modular Mobile Gaming Controller

Here's the latest X5 Alteron, the world's first fully modular mobile gaming controller, which lets you swap sticks, buttons, ...