Connect a Laptop to a Monitor With a USB-C to DisplayPort Adapter

By Anker | Live Charged.-Anker US | Published: 2026-10-31

Category: How-to Guides

Set up a USB-C to DisplayPort adapter the right way, from checking DisplayPort Alt Mode to fixing a blank screen, with a simple step-by-step process.

Quick answer

Use a USB-C to DisplayPort adapter only if your laptop's USB-C port supports DisplayPort Alt Mode. Connect the adapter to the laptop, run a DisplayPort cable to the monitor, then select the correct input and display mode.

Why the USB-C port matters more than the adapter

A USB-C to DisplayPort adapter passes video through the laptop's USB-C port, so the port must support DisplayPort video output. Many charging-only USB-C ports do not. Check your laptop manual or port labeling before buying an adapter; if the port only lists charging or USB data, the adapter will not create a video signal.

The PowerExpand USB-C to DisplayPort Adapter is designed for devices that support DisplayPort over USB-C. That compatibility note is the key decision point, not the adapter's compact size.

One adapter, one monitor: when a hub is the better call

This adapter gives you a single DisplayPort output. If you need two monitors, Ethernet, or several USB accessories at the same time, a USB-C hub with multiple video outputs may fit better. For a single external screen, the adapter keeps the setup simple and portable.

The catalog does not list supported resolutions or refresh rates for this adapter, so confirm those details against your laptop and monitor specifications before relying on a particular resolution.

Step-by-step adapter setup

Confirm DisplayPort support on your laptop: Look up your laptop model's USB-C specifications or check the port icon. The port must support DisplayPort Alt Mode or DisplayPort over USB-C. Common mistake: assuming every USB-C port outputs video. If the spec sheet does not mention DisplayPort video, stop and use a different port or a dock that matches your laptop.
Connect the adapter to the laptop: Plug the adapter's USB-C connector directly into the laptop port, not into a passive USB-C extension cable. Checkpoint: the connector should seat fully without force.
Run a DisplayPort cable to the monitor: Connect a DisplayPort cable from the adapter's DisplayPort end to the monitor's DisplayPort input. Use a cable rated for the resolution you plan to use. Common mistake: plugging into the monitor's HDMI or Mini DisplayPort input by mistake. Label or note which monitor input you used so you can select it in the next step.
Select the correct input and display mode: Power on the monitor and choose the matching DisplayPort input in its menu. On the laptop, open display settings and choose Extend or Duplicate. Checkpoint: the monitor should appear as a second display.
Troubleshoot a blank screen in order: If nothing appears, reseat both ends, try a different DisplayPort cable, confirm the monitor input again, and test the adapter on another DisplayPort-capable laptop. Common mistake: changing multiple settings at once and losing track of what fixed the issue. If the adapter works on another laptop but not yours, the limitation is likely your laptop's USB-C port, not the adapter.

Product facts

PowerExpand USB-C to DisplayPort Adapter: USB-C to DisplayPort connectivity for video output in a compact, portable design. It is a travel-friendly option for extending or mirroring one DisplayPort monitor, provided your laptop port supports DisplayPort over USB-C.
PowerExpand USB-C to DisplayPort Adapter