Breadboard-friendly MIDI Jack (5-pin DIN) : ID 1134 : $1.75 : Adafruit Industries, Unique & fun DIY electronics and kits
5-Pin DIN To 3.5mm Stereo Audio Adapter - EAR Customized Hearing Protection
PSC 3.5mm Mini Jack to 5-Pin LEMO Cable for Tentacle FPSC1084
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Amazon.com: SinLoon 5-Pin DIN-Male Cable, 5 Pin Din to 3.5mm(1/8in) TRS Stereo Male Jack Stereo Audio Cable forB & O System Playing The Musical Instrument Signal Output 1.5m (5 feet,3.5M-5 DIN M) :
Jack Plug Connector Pole 5 | Plug Connector 5 Pin Jack | Jack Socket Connector 3 5 - 20 - Aliexpress
5 Pin Midi Straight Plug - Goodwood Audio
JAC-10237 Standard Audio Din Jack- 5 Pin, 180 Degrees | Kobe Trading Company, Inc.
5 pcs Male & Female 5 pole Phone jack 3.5mm 5 pin socket and stereo