Specification for TRS Adapters Adopted and Released -
Amazon.com: MOBOREST 6.35mm(1/4) TRS to 5-Pin DIN MIDI Cable Adapter Connect an Speaker, Amplifier, Mixer to MIDI Keyboard, Synthesizer, Guitar and Other European Type Stereo Equipment with Din 5 Connector -1FT :
Make Noise MIDI Mini-Jack Adapter Dongle - Type A – Control
ExcelValley - MIDI Adapter Breakout Cables - All Versions Available !!
Befaco TRS-MIDI Cable A – Thomann United States
MIDI to 3.5 mm TRS adapter (Kismet) -- TYPE B | Reverb
Amazon.com: Boss BMIDI-5-35 Type A 3.5mm TRS to Male 5-pin DIN MIDI Cable - 5 Foot : Musical Instruments
MIDI Jack Adapter - TRS mini jack to MIDI Din adapter - Type A – Domoshop.eu
Updated] How to Make Your Own 3.5mm mini stereo TRS-to-MIDI 5 pin DIN cables -