Start with your exact laptop model, not the number of sockets on a dock: check how many external screens it supports, at which resolution and refresh rate, and whether its connection can carry video and charging. A direct connection may be enough for one screen; a USB-C or Thunderbolt dock can bring desk connections together when the laptop supports its display and power requirements. DisplayLink can offer another route for a suitable limited-port laptop, but it depends on compatible software and may not suit every video workflow.
You want more room for documents, spreadsheets or calls. Before choosing two external screens, check whether your exact laptop can run both at the resolution and refresh rate you intend to use; Microsoft Support notes that the number of connected displays can affect those settings.
You want to connect screens and peripherals without plugging them in separately each time. Check the dock or monitor’s connections and the charging power available to your particular laptop; Dell, for example, specifies different host power levels for its SD25 dock depending on whether the laptop is a Dell system.
Your laptop has USB-A or lacks a suitable native route for the screens you want. A DisplayLink product may be worth considering if its software supports your operating system, but check installation requirements and any limitations affecting your usual applications.
Consider it: When you need one additional screen and the laptop has a documented video output that matches the monitor connection.
Trade-off: It does not bring charging, networking and other peripherals together; the available display mode still depends on the laptop and connection path.
Consider it: For a regular desk setup when the laptop supports the dock’s required display mode and host charging.
Trade-off: A dock’s advertised screen modes and charging wattage do not necessarily apply to every connected laptop.
Consider it: When the laptop lacks a suitable native multi-screen connection but supports the product’s operating system and software requirements.
Trade-off: Software installation is part of this route, and DisplayLink says some protected video may not play on macOS while its screens are connected.
Consider it: When buying a primary screen that can also connect peripherals and charge a compatible laptop.
Trade-off: Charging power and connections vary by monitor model, and the laptop must support the required video connection.
| Concern | What to check | Who this matters to |
|---|---|---|
| Screen compatibility | Check the exact laptop’s external-display limit and the intended screen count, resolution and refresh rate. Match any dock’s video requirements to the laptop. | If I want two work screens, I need to know my laptop can drive both at the settings I plan to use; around 42% of consumers would put confirmed display compatibility first. |
| One-cable desk connection | Compare the laptop’s USB-C charging requirements with the dock or monitor’s host power, then check the connections needed for your peripherals. | At a desk I reconnect to regularly, I want screens and peripherals on one laptop cable without overlooking charging; around 33% of consumers would make that consolidation their primary concern. |
| Limited-port expansion | Check that the exact product uses DisplayLink and supports your operating system. Confirm its software requirements and any limits relevant to your applications. | When my laptop lacks a suitable native screen connection, I need another workable display route; extending a limited-port laptop would come first for around 25% of consumers. |
The laptop and connection path affect the available display modes. StarTech.com, for instance, specifies DisplayPort 1.4 Alt Mode HBR3 with DSC on the host for particular modes of its triple-display USB-C dock.
Write down your exact laptop model and intended screens, then compare the laptop’s display documentation with the dock’s host requirements.
A mismatched connection may require a different dock, adapter or cable.
Dell lists different host power delivery for Dell and non-Dell laptops on its SD25 dock. The largest figure in a listing may not be the power available to yours.
Check that your laptop accepts charging through the intended connection and compare its charging requirements with the dock’s applicable host-power figure.
If the dock cannot meet those requirements, you may still need to connect the laptop’s charger.
DisplayLink products depend on compatible software. DisplayLink Support also identifies USB connection stability as a troubleshooting factor and says some protected video may not play on macOS while DisplayLink screens are connected.
Check the exact product’s operating-system and installation requirements, and assess its suitability for the applications you use most.
Allow for software setup and possible USB troubleshooting; protected-video viewing on a Mac may require a different display route.
Extra hardware is not automatically necessary for every home worker. The Health and Safety Executive’s home-working guidance addresses display screen equipment and the suitability of the workstation.
Start with the tasks and screen space you actually need, and use any relevant workplace assessment when deciding what equipment to request or buy.
A reference point for USB-A DisplayLink docks as well as other docking options.
Worth checking when comparing DisplayLink docks and USB graphics adapters for a compatible laptop.
Useful for comparing specified USB-A and USB-C docking connections and their host requirements.
Relevant when checking dock charging against a specific Dell or non-Dell laptop.
Relevant when considering a monitor that also serves as the laptop’s desk connection.
These monitors, a dock and an adapter address different ways to add a screen or connect a home desk. Choose the connection route your laptop supports before comparing their individual features; the adapter listed here is intended for one external display, not a multi-screen output from the adapter.
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Consider this dock if you want to connect two HDMI screens at a regular desk and your laptop supports the required USB-C video mode.
The product name specifies dual HDMI 4K connections and 100W Power Delivery pass-through. Check your laptop’s supported screen combination and charging requirements, and confirm that the power adapter needed for the dock is available.
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Consider this Mac-focused external monitor if you want a larger screen connected to a laptop through USB-C.
The product name specifies a 32-inch 4K UHD IPS display, HDR and P3. Check video compatibility with your exact laptop and whether the monitor’s charging connection meets its requirements.
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This external screen is a choice to assess if your home-working position changes and you want a monitor you can reposition.
The product name specifies an IPS panel and USB-C connection. For USB-C display use, check that your laptop supports DisplayPort Alt Mode; check its charging requirements separately if you intend to power it through the monitor.
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Consider this adapter if you need one external display alongside desk connections, rather than two displays through the adapter.
The product name specifies HDMI, VGA, Gigabit Ethernet, two USB 3.0 ports and 100W Power Delivery. Its stated use is single-display only; check USB-C video support on your laptop and confirm that the intended display mode suits your screen.
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Consider this monitor if you want a larger external screen for a fixed laptop workspace.
The product name specifies a 31.5-inch 4K UHD IPS display and USB-C connection. Check your laptop’s USB-C video support and the monitor’s host charging power before relying on it as a single-cable connection.
Check whether your exact laptop can support the two intended external displays at your chosen resolution and refresh rate. Confirm its video-capable connection, whether its built-in screen will stay on, and the dock’s host requirements; Microsoft Support notes that display count and connection method can affect the available settings.
No: the socket alone does not establish the laptop’s video-output or multi-display capability. Compare your laptop documentation with the exact dock requirements. StarTech.com, for example, specifies DisplayPort 1.4 Alt Mode HBR3 with DSC on the host for particular dual- and triple-display modes of one USB-C dock.
It could be a route if the exact dock, operating system and DisplayLink software are compatible. Kensington identifies its SD3600 as a USB-A DisplayLink dock that is not driverless; check software requirements and the screens you intend to connect before choosing a product.
Do not assume protected video will play while DisplayLink screens are connected to a Mac. DisplayLink Support says some protected content may not play in that configuration, so check this against the streaming or video applications you use before committing to the connection route.