Featured roundup
The best docks for a MacBook Air with two monitors
On M4, M5 or lid-closed M3, the Plugable TBT-UDM documents two 4K 60Hz monitors with no driver. On M1 or M2, a second monitor needs DisplayLink.
8.9/10 Very good
Researched, not hands-on tested
Our picks at a glance
Each pick fits a different MacBook Air and desk. Scores come from documentation against our published rubric.
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Best overall
Plugable TBT-UDM
8.9/10 Very good
Two 4K 60Hz HDMI monitors documented on M4, M5 and lid-closed M3, with no driver.
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Best for M1 and M2
Plugable UD-ULTC4K
7.4/10 Good
DisplayLink dock that Plugable documents past the one-monitor limit on M1 and M2.
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Best compact
CalDigit SOHO Dock
4.9/10 Limited
Small hub for one 4K 60Hz monitor on a Mac, with 90W pass-through.
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Most ports
CalDigit TS4
7.1/10 Good
18 ports and 98W charging. CalDigit names only the original M1 among MacBook Air chips, with one display.
Researched, not hands-on tested
Product art is our illustration of documented ports, not a photo.
Latest reviews
Five docks and hubs, all reviewed on November 9, 2026. All reviews
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Plugable · Thunderbolt 4 dock · Highest score
Plugable TBT-UDM review
8.9/10 Very good
Two 4K 60Hz HDMI monitors on M4, M5 and lid-closed M3; one on M1 and M2.
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Plugable · DisplayLink dock
Plugable UD-ULTC4K review
7.4/10 Good
Up to three 4K 60Hz monitors on M1 to M4 with DisplayLink Manager. No HDCP.
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CalDigit · Thunderbolt 4 dock
CalDigit TS4 review
7.1/10 Good
18 ports and 98W. The manual allows two monitors on capable hosts but does not name M2 to M5.
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CalDigit · USB-C hub
CalDigit SOHO Dock review
4.9/10 Limited
One 4K 60Hz monitor on a Mac; a second monitor only mirrors.
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Plugable · Dual-HDMI USB-C hub
Plugable USBC-11IN1E review
4.3/10 Limited
Why "dual 4K" mirrors on a Mac: the second HDMI port relies on MST.
Start with your MacBook Air
Apple documents a different external display limit for each chip. Pick yours to go to the matching pick or guide.
- MacBook Air M1 1 external displayMore needs DisplayLink See the M1 and M2 pick
- MacBook Air M2 1 external displayMore needs DisplayLink See the M1 and M2 pick
- MacBook Air M3 1 with lid open2 with lid closed Read the M3 lid-state guide
- MacBook Air M4 2 external displays See the best overall pick
- MacBook Air M5 2 external displays See the best overall pick
- Not sure which chip? Apple menu > About This Mac shows the model and chip.
Guides
Host limits first, then the docking approach, then products. All ten guides are in the guide index.
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Host limits
How many external monitors can your MacBook Air actually use?
Apple's limits for M1 to M5 by lid state and display mode.
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Approach
Native video vs DisplayLink
What each method needs, and what it rules out.
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Buying
Choosing a two-monitor dock for M4 and M5
When direct cables are enough, and what a dock must document.
Every score carries its evidence
A dock is compatible with a configuration, not with a connector name. Each statement is labelled by where it comes from, and we say so when we do not know.
- Apple documentation
Stated on an Apple Support or technical specifications page for that model.
- Manufacturer documentation
Stated by the dock, adapter or software maker for that product. Not verified by us.
- Not confirmed
No documentation we could read covers that exact combination.
- Not supported
The documentation says it does not work.
Already own a dock?
If only one monitor lights up, the cause is often a documented limit or a setting, not a broken part. Work through the checks in order before buying anything new.