Best for extra monitors Product type
DisplayLink dock
A workaround for extra monitors when the laptop or Mac can't drive them natively.
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DisplayLink docks on Mac: what works and what does not
Our top picks
Best for extra monitors
Product type
Thunderbolt 4 dock
The most capable choice when your laptop or Mac has a Thunderbolt 3, 4 or USB4 port.
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| Product | Connection | Best for | Notes |
|---|---|---|---|
| DisplayLink dock | USB-C or USB-A | Extra monitors on limited laptops | Driver required |
| Thunderbolt 4 dock | Thunderbolt 4 | Two 4K displays, fast storage | Check power wattage and firmware |
DisplayLink is the technology behind many docks that promise extra monitors on laptops that otherwise cannot drive them, including base-model Apple silicon MacBooks. It works, with trade-offs that are worth understanding before you buy.
Based on manufacturer and DisplayLink documentation and published specifications. We have not hands-on tested these products. Check DisplayLink’s current macOS support notes before buying.
What DisplayLink is
A DisplayLink dock contains a chip that receives compressed video over USB. A software driver installed on the laptop renders and compresses the extra screens and sends the data. It acts like a virtual graphics adapter. That means it is independent of the laptop’s native display limit.
Why Mac users end up here
Base-model Apple silicon MacBooks have limited native external display support, and macOS does not support MST dual monitors on cheap USB-C docks. See our dual monitor guide. DisplayLink is the common workaround for adding a second or third monitor.
What works well
- Office use: documents, spreadsheets, email, web, chat.
- Static or slowly changing content on extra screens: dashboards, terminals, monitoring.
- Mixed ports: some DisplayLink docks work over USB-A as well as USB-C, useful for older laptops.
What works poorly
- Fast motion video and gaming. Compression and CPU rendering can lower smoothness.
- Protected (DRM) video. Streaming services may refuse to play on DisplayLink-driven screens, or show black.
- Color-critical work. Compression and virtual adapters are not suited for HDR or accurate color workflows.
- High refresh rate. Many DisplayLink docks target 60 Hz.
Mac-specific setup notes
- Install DisplayLink Manager from DisplayLink’s official site or the dock maker’s support page.
- macOS asks you to allow the system extension (System Settings → Privacy & Security). Approve it and restart if requested.
- Grant Screen Recording permission to DisplayLink Manager. macOS needs this to render the extra display.
- Connect the dock and arrange monitors in System Settings → Displays.
- If a display goes blank after a macOS update, reinstall or update the driver; major macOS updates often need a new DisplayLink release.
Compatibility checklist before buying
| Check | Why it matters |
|---|---|
| Dock lists macOS support and your macOS version | Drivers lag new macOS releases |
| Maximum resolution per display with your number of displays | Limits tighten as you add screens |
| Whether the dock also uses native DisplayPort for one screen | Some docks use native for one monitor and DisplayLink for the other |
| Driver download from DisplayLink or the maker | Avoid third-party driver sites |
| Your Mac’s native limit | A Mac that supports native dual displays may not need DisplayLink |
Alternatives
- Thunderbolt dock on a Mac with native dual display support: best quality, no driver.
- Thunderbolt monitor with a hub: adds ports and a display.
- Using one ultrawide monitor: one cable, one native display. A big ultrawide can replace two monitors.
Troubleshooting
- Black second screen: reinstall the driver, restart, check permissions.
- Laggy cursor on the extra display: lower resolution or refresh, close CPU-heavy apps.
- Display missing after sleep: reconnect the dock, update driver and firmware.
- Video playback blocked: move the video window to the native display.
- Corporate Mac: security tools may block system extensions. Ask IT.
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FAQ
Is DisplayLink safe? It is a long-established commercial technology. As with any driver, download it only from the vendor and apply updates.
Will it slow my Mac? It uses some CPU, noticeable mainly with multiple high-resolution displays or heavy workloads.
Does DisplayLink work on Apple silicon? DisplayLink publishes macOS drivers that support Apple silicon; confirm the current version.
Do I need DisplayLink if my Mac supports two displays natively? No, native Thunderbolt output is preferable.
Can I use DisplayLink for the third monitor only? Some setups combine native outputs with one DisplayLink screen. Check the dock manual.
Verdict
DisplayLink is a practical fix for Macs that cannot natively drive the number of monitors you want, provided you accept a driver, a permission prompt and limits on video and color work. If your Mac can do it natively, buy a Thunderbolt dock instead. See Thunderbolt vs USB-C dock.