How to Add a Gigabit Ethernet Port to a USB-C Laptop

By Plugable #1 in Docking Stations and USB Devices ~ Plugable ... | Published: 2026-10-23

Category: How-to Guides

Learn how to add a reliable wired internet connection to your USB-C laptop with a gigabit ethernet adapter. Step-by-step setup, tips, and common pitfalls.

Quick answer

The fastest way to add a gigabit ethernet port to a USB-C laptop is to use a USB-C to ethernet adapter. Plug it in, connect your cable, and you'll have a reliable wired connection in under a minute.

Why choose a wired connection

A wired internet connection offers lower latency and more stable speeds than Wi‑Fi, especially in crowded networks or when you need consistent throughput for video calls, large downloads, or online gaming.

Most modern USB-C laptops lack an ethernet port, but a gigabit ethernet adapter bridges that gap without requiring internal modifications.

What to look for in an adapter

Check that the adapter supports the speed you need. Gigabit ethernet (1 Gbps) is standard for most home and office networks, but if your internet plan exceeds that, consider a 2.5G adapter for future-proofing.

Compatibility matters: some adapters work only with USB-C, while others include a USB-A connector for broader device support. Also confirm your laptop's operating system—most adapters are plug-and-play on Windows, macOS, and ChromeOS, but verify driver requirements.

How to set up your USB-C ethernet adapter

Choose the right adapter: Select a gigabit ethernet adapter that matches your laptop's port (USB-C) and your network speed. If your internet plan exceeds 1 Gbps, consider a 2.5G adapter for future-proofing. Check your network speed before buying to avoid overpaying or underperforming.
Plug in the adapter: Insert the USB-C connector into your laptop. If your adapter has a USB-A option, use the appropriate end for devices that lack USB-C. Ensure the connection is snug; a loose fit can cause intermittent drops.
Connect the ethernet cable: Plug one end of an ethernet cable into the adapter and the other into your router or wall jack. Use a Cat 5e or higher cable to support gigabit speeds. Avoid running the cable across walkways to prevent damage and trip hazards.
Install drivers if needed: Most adapters are plug-and-play, but some require driver installation. Visit the manufacturer's website and download the latest drivers for your operating system. Check the device manager or network settings to confirm the adapter is recognized.
Verify the connection: Open your network settings and confirm the ethernet adapter is active. Run a speed test to ensure you're getting the expected throughput. If speeds are low, test with a different cable or port to isolate the issue.

Product facts

Plugable 2.5G USB-C and USB to Ethernet Adapter: The Plugable 2.5G USB-C and USB to Ethernet Adapter supports both USB-C and USB-A connections, making it compatible with modern and legacy devices. This versatility means you can use it with your current USB-C laptop and later with a USB-A device, saving you from buying a second adapter.
Plugable 2.5G USB-C and USB to Ethernet Adapter