This Module is currently available.
This is the Input/Output Expander for the Nerdseq
It adds Midi Input and Output to the Nerdseq as well as the ability to connect a Sega Gamepad for Navigation and editing
https://xor-electronics.com/product/nerdseq-io-expander-grey-black/
These merchants probably sell this module. Huh?
XOR Electronics NerdSEQ Multi-IO
XOR Electronics XOR Electronics MIDI