Expander · 4 HP
Sega Gamepad Expander
A port for a Sega Genesis gamepad, for people who would rather perform with a D-pad than a menu.
A small board that exists to fill a gap: the Multi-IO Expander has no Sega gamepad port, so this adds one. It can also be used on the NerdSEQ port on its own, with no MIDI expander at all.
- Sega Genesis gamepad input.
- Works alongside the Multi-IO Expander, or on its own.
- Black PCB front panel.
- 12-pin ribbon cable included.
Not a standalone product — it works only with the NerdSEQ.
Cannot be combined with the regular IO (MIDI) Expander or the 2HP TRS-A MIDI Expander.

Specifications
| Status | Available |
| Width | 4 HP |
| Input | Sega Genesis gamepad |
| Connection | 12-pin ribbon cable included |
Prices and stock are in the shop, so what you see there is always current. Local dealers are on the distributors page.