Nintendo looks set to release wireless SNES controllers for the Nintendo Switch, which likely means it’ll also be bringing classic SNES titles to its Nintendo Online virtual gaming library. The news comes via an FCC filing (hat tip to Eurogamer), which includes a diagram of what looks very clearly to be the backside of a Super Nintendo-style wireless controller.

The diagram includes a model number that uses the “HAC” code that Nintendo employs to designate Switch accessories, and history suggests that the arrival of retro-inspired hardware for the Switch also means throwback games are on their way. Nintendo launched wireless NES controllers for the Nintendo Switch in September, and they arrived alongside NES games delivered via Nintendo Online as free perks for subscribers.

The FCC filing is more or less concrete proof that Nintendo intends to release something, but the rest is speculation (if very likely, informed speculation) at this point. Still, it seems inevitable that Nintendo bring its SNES library to the Switch, especially since it did so for the Wii Virtual Console before.