MacBook Air M1 Dual Monitors: How to Run Two External Displays
The M1 MacBook Air natively supports one external display. If you need two independent external monitors, a DisplayLink dock can provide a practical workaround to that native limit.
Setup checked
What you need
- MacBook Air — M1 (2020)
- A DisplayLink docking station such as the Plugable UD-6950Z
- Two external monitors
- Display connections and cables that support the resolution and refresh rate you want to use
- DisplayLink Manager installed on macOS
- Screen Recording permission enabled for DisplayLink Manager
- The MacBook Air charger connected separately if laptop charging is required
Products in this setup
Plugable UD-6950Z
The DisplayLink dock used in this documented dual-4K setup.
View Plugable UD-6950Z at Newegg →Paid link — DeskCheck may earn a commission at no additional cost to you. Compatibility results are calculated independently.
Can a MacBook Air M1 run two external monitors?
Not through the MacBook Air M1's native display path alone. Apple's technical specifications document support for one external display at up to 6K resolution at 60 Hz.
So if you connect a normal USB-C or Thunderbolt dock with two monitor ports, the M1 MacBook Air does not automatically gain support for two independent external monitors.
To build a MacBook Air M1 dual-monitor setup with two external displays, you need a different display path such as DisplayLink. DisplayLink adds USB-based graphics instead of relying entirely on the MacBook Air's native external-display pipeline.
How does DisplayLink give the MacBook Air M1 two external monitors?
DisplayLink uses a USB graphics path to provide additional external displays instead of depending entirely on the MacBook Air's native external-display pipeline.
Plugable specifically documents the UD-6950Z as a way to connect two external 4K monitors at 60 Hz to M1 MacBooks.
This allows an M1 MacBook Air to use two independent external displays even though Apple documents only one native external display for the laptop itself.
What software is required?
DisplayLink Manager must be installed on macOS.
macOS also requires Screen Recording permission for DisplayLink Manager to function correctly.
DisplayLink explains that this permission allows the software to access the screen pixels needed to render the extended display and send those pixels over USB to the DisplayLink device.
Will the UD-6950Z charge the M1 MacBook Air?
No. Plugable documents that the UD-6950Z does not provide power to the connected laptop.
Keep the MacBook Air's normal charger connected if you need laptop power while using the dock.
This is one reason DeskCheck marks this exact setup CONDITIONAL when laptop charging is part of the requirement.
Is DisplayLink the same as a native Thunderbolt display?
No. DisplayLink is a useful way to add displays beyond the laptop's native display limit, but it is a software-assisted USB graphics solution rather than a normal native Thunderbolt video path.
Plugable positions the UD-6950Z primarily for productivity workloads such as office applications, development, web browsing, and multitasking.
Plugable also says the dock is not recommended for gaming and does not support HDCP-protected video playback through its DisplayLink outputs.
Important limitations
- This result applies to two external displays at up to 4K 60 Hz using the Plugable UD-6950Z and DisplayLink.
- DisplayLink Manager must remain installed and running for the additional external display path to work.
- macOS permissions required by DisplayLink Manager must remain enabled.
- Monitor inputs, cables, and adapters still need to support the resolution and refresh rate you want to use.
- The UD-6950Z does not provide laptop charging, so the MacBook Air should use its separate charger when power is required.
- DisplayLink is intended primarily for productivity use. Plugable does not recommend this dock for gaming and notes limitations with HDCP-protected video playback.
- CONDITIONAL means the setup works when the documented DisplayLink software requirements are satisfied. It does not guarantee against defective hardware, firmware issues, macOS problems, or cable faults.
Sources
Apple documents support for one external display up to 6K resolution at 60 Hz.
Plugable specifically documents using the UD-6950Z with M1 MacBooks for two external 4K 60 Hz monitors and notes that DisplayLink Manager is required.
Plugable documents dual 4K 60 Hz DisplayLink support, macOS driver requirements, and that the dock does not provide host charging.
DisplayLink documents the macOS permission required for DisplayLink Manager to render mirrored or extended displays.
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Related guides
The requested display setup is possible, but additional requirements apply. In this case DisplayLink software and the required macOS permission are necessary, and the UD-6950Z does not provide laptop charging.
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