Brook Retro Board
Brook Retro Board
- https://arcadeshock.com/products/brook-retro-board
- Controller adapter support for nearly every console, including Saturn and PC-Engine
- Custom cables at https://arcadeshock.com/products/retro-cables-custom-made-rj45
- Made in alliance with Brook of Brook Retro Converters
- Commercial, no open source firmware, difficult remapping
This is an interesting project that even sells cables. It's not clear how active development is.
Brook Retro Converters
- https://www.brookaccessory.com/Retro%20Converters/list.html
- Several retro boards for Switch, Dreamcast, Genesis, NeoGeo, GC, NES, SNES
- Simple conversion, no remapping
The site has a number of other newer products that appear to have cheating oriented features. The converters appear to be very generic.