https://www.startech.com/en-us/cards-adapters/icusbaudiob
https://www.newegg.com/startech-com-icusbaudiob/p/N82E16829128004?Item=9SIA2F89142810

Cable
Odd BNC/3.5mm...
https://remoteaudio.com/timecode/
TRS
Part numbers: CATC1/8BNC, CAZTCINBNC
TRRS
Part number:  CATCiPBNC