Now-a-days 3.5mm is the universal audio jack size to be found in Smartphones, PC and Laptops. Also, for hobbyists 3.5mm audio jack is a useful components for projects that plug into headphone jacks.
Fancasee (10 Pack) Replacement 3.5mm male Plug to Bare Wire Open End TS 2 Pole Mono 1/8 inch 3.5mm Plug Jack Connector Audio Cable Repair
MillSO USB to 3.5mm jack audio adapter ideal to connect a TRRS 4-pole CTIA 3.5mm headset, TRRS mic or speaker to PC via USB interface. One combo
MillSO USB to 3.5mm Audio Jack Adapter, Sapphire Blue TRRS USB to AUX Audio Jack External Stereo Sound Card for Headphone, Speaker, PS4, PS5, PC
Headphone Jacks and Plugs: Everything You Need to Know
PNGKNYOCN 2.5mm to 3.5mm Adapter Cable，2 Pack 2.5mm Mono Male to 3.5mm TRS Female Audio Jack Short Cable for Smartphone Headphone etc(20cm : : Electronics
TS vs TRS vs TRRS AUDIO CABLES: What Is the Difference? – Audio University
7.1 External Type C Usb Sound Card for Macbook Pro Air USB C 3.5mm Audio Jack Headphone Mic Adapter USB-C Sound Card - AliExpress
Ugreen Sound Card Usb Audio Interface 3.5mm Microphone Audio Adapter Usb Sound Card For Pc Ps4 5 Headset External Sound Adapter - Sound Cards - AliExpress
Super VGA cable with audio jack of 3.5 mm male male 30 meters - Cablematic
Phone connector (audio) - Wikipedia
