Some Macs also support optical digital audio input using the S/PDIF protocol. To check if optical digital audio is available on your Mac, see the Apple Support article Play high sample rate digital audio on Mac computers.Īudio in: You can use this port to connect stereo equipment to your Mac with a stereo miniplug-to-RCA cable adapter. Use a Toslink cable with a Toslink miniplug adapter or a fiber-optic cable with a 3.5 mm plastic or nylon optical plug. Some Macs also support optical digital audio output via the headphone audio port.
Connect headphones (with or without a built-in microphone), self-powered speakers, or other audio equipment using a standard audio cable with a 3.5 mm metal plug.
Headphone: You can use this port as a combination headphone and line-out port.
