How to Connect a MacBook to a 4K Monitor (2026 Guide)

Updated July 2, 2026 · ConnectWizard

To connect a MacBook to a 4K monitor, use a USB-C to HDMI or USB-C to DisplayPort cable that supports 4K at 60Hz. Modern MacBooks output video directly over their USB-C/Thunderbolt ports, so a single cable or adapter is usually all you need. For 4K at a smooth 60Hz, confirm the cable explicitly supports it — many cheaper adapters cap at 4K 30Hz, which looks choppy.

Connection Methods

USB-C to HDMI 🔌 Wired

  1. Check your monitor's input — most 4K monitors use HDMI 2.0 or higher.
  2. Get a USB-C to HDMI adapter rated for 4K at 60Hz (HDMI 2.0+).
  3. Plug USB-C into your MacBook and HDMI into the monitor.
  4. Open System Settings → Displays to detect and arrange the screen.
  5. Set resolution to native 4K (3840×2160) and refresh to 60Hz.

Parts you may need

🛒 USB-C to HDMI Adapter (4K 60Hz)

USB-C to DisplayPort 🔌 Wired

  1. Confirm your monitor has a DisplayPort input.
  2. Get a USB-C to DisplayPort cable supporting 4K 60Hz+.
  3. Connect USB-C to the MacBook and DisplayPort to the monitor.
  4. Configure resolution and refresh rate in System Settings → Displays.

Parts you may need

🛒 USB-C to DisplayPort Cable
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Pro Tips

Frequently Asked Questions

Can a MacBook run a 4K monitor at 60Hz?

Yes. All USB-C MacBooks support 4K at 60Hz over USB-C, as long as your cable or adapter is rated for HDMI 2.0 or DisplayPort 1.2 and above.

Why is my MacBook only showing 4K at 30Hz?

This is almost always a cable limitation. Replace the adapter with one explicitly rated for 4K 60Hz.

Do MacBook Air models support external monitors?

Yes, but M1 and M2 MacBook Air models support only one external display natively. A DisplayLink dock is needed for more.

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