How to Connect a MacBook to an External Monitor (USB-C & HDMI)

Updated July 2, 2026 · ConnectWizard

To connect a MacBook to an external monitor, use a USB-C to HDMI adapter or cable — modern MacBooks output video directly through their USB-C/Thunderbolt ports. Plug in the adapter, connect HDMI to the monitor, and macOS detects the display automatically.

Connection Methods

USB-C to HDMI 🔌 Wired

Get a USB-C to HDMI adapter or cable.
Connect USB-C to the MacBook and HDMI to the monitor.
Open System Settings → Displays.
Click 'Arrange' to position the monitor and choose mirror or extend.

Parts you may need

🛒 USB-C to HDMI Adapter

⚡ Generate a custom guide for your exact devices →

Pro Tips

Use 'Extend' to gain workspace, 'Mirror' to duplicate.
Hold Option and click 'Scaled' for more resolution choices.
A USB-C hub adds monitor plus USB ports and charging in one.

Frequently Asked Questions

How do I connect my MacBook to a monitor?

Use a USB-C to HDMI adapter from your MacBook's USB-C port to the monitor's HDMI input. macOS detects it automatically.

Why won't my MacBook detect the monitor?

Try System Settings → Displays and click 'Detect Displays' (hold Option to reveal it). Reseat the cable and confirm the monitor's input source.