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by John W. Simek, Vice President of Sensei Enterprises, Inc.

Add Multi Monitor Support to Mac M1 and M2 Computers

November 10, 2022

Officially, Apple only supports one external monitor for M1 and M2 based computers. That’s a limitation some users will not accept. Not to worry. Ars Technica has a post discussing a USB adapter from Plugable that claims to support up to four external HDMI monitors. “Plugable released its USB-C or USB 3.0 to Quad HDMI Adapter (USBC-768H4) on Tuesday, saying it supports up to four monitors via HDMI, including for M1 and M2 Macs. The adapter requires you to use Windows 10 or macOS 11 and later.”

There are some limitations with the adapter. As an example, resolution is limited to 1920×1080 at a 60 Hz refresh rate. “Even with all ports used, Mac users will be limited to as many pixels as a single 4K screen.” As would be expected, Apple doesn’t endorse or support the adapter either. The adapter currently sells for $120 and may be a good option for those looking to add more than one external monitor.

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