A 4K Capture Card, a MacBook and a Very Simple Cable

Fri, 17 Jul 2026 14:30:00 +0200

My friend Tamás wanted to add a 4K capture card to his streaming setup and hand streaming duties over to his M1 MacBook Pro, while his gaming PC stays dedicated to just running the game.

We got on a Discord call to plan the wiring and ended up spending over an hour on it - not because the hardware was complicated, but because of one very persistent question: how does audio work?

Audio on nrdblg

A 4K Capture Card, a MacBook and a Very Simple Cable