Panel Mount 1/8 / 3.5mm TRS Audio Jack Connector : ID 3692 : $0.75 : Adafruit Industries, Unique & fun DIY electronics and kits
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Delock Products 83438 Delock Stereo Jack Cable 3.5 mm 4 pin male to male 5 m black
3.5mm (1/8) Stereo DIY Plug : ID 1800 : $0.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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