MIDI-IFF
MIDI - RS232 Interface

MIDI-IFG
MIDI - RS232 - RS485 Interface

Be-Station
MIDI - RS232 - RS485 - LAN - BlueTooth (or Wi-Fi)

mini-MIDI-WASP

MIDI Interceptor

PolyDAC
4-voice polyphonic MIDI-CV

8/16-channel, velocity controlled MIDI-Trigger

MIDI-Retrofit-8

MIDI-Retrofit-16

MIDI-3c for the Psion Series 3c