Here is a short list of some audio cables that are used:

S/PDIF RCA Cables – Outputting audio over short distances
XLR Cables – Delivering balanced microphone and line-level signals over long distances
Speakon Cables – Connecting loudspeakers to amplifiers
RCA Cables – Connecting devices like DVD players to TV sets or CD players to receivers
MIDI Cables – Connecting electronic music devices such as drum machines to your computer
USB Cables – Connecting computers to peripheral devices such as cameras, printers etc
Firewire Cables – Adding peripherals to a computer
ADAT Cables – Transferring 8 channels of digital audio over a single fiber optic cable