Except for USB, they are all analogue, and some are mutually interchangeable. 3.5mm TRS, dual 3.5mm TS, dual RCA, 1/4" TRS, dual 1/4" TS, XLR cables transfer t

Except for USB, they are all analogue, and some are mutually interchangeable. 3.5mm TRS, dual 3.5mm TS, dual RCA, 1/4" TRS, dual 1/4" TS, XLR cables transfer the same kind of signal, and you can easily convert between the connector with dongles. Mixers have all of these so that you wouldn't have to. The utility is not thinking about where the f***ing dongle is when you just want to plug something in.