You can add a wired connection to a USB-C device using an adapter or hub with an RJ45 (Ethernet) port.

1. Plug a USB-C to Ethernet adapter, multiport hub, or docking station into your device’s USB-C port.
2. Connect an Ethernet cable from your router or switch to the RJ45 port.
3. If the accessory supports power delivery (PD) pass-through, attach your charger to keep your device powered.
4. Wait for the system to detect the connection; many setups are plug-and-play.

Actual speeds depend on the adapter (100 Mbps, 1 Gbps, or higher), your network hardware, cable quality, and service plan. Checking product specs and compatibility before purchase can help you pick a good fit.

The right pick depends on how and where you’ll use it. Consider:

• Speed: Options include 100 Mbps, Gigabit (1 Gbps), and some 2.5 Gbps models. Match to your internet plan and network gear.
• Form factor: Single-port adapters are compact; hubs add HDMI, USB, and card readers; docking stations offer full desktop connectivity.
• Power delivery: PD pass-through lets you charge while using Ethernet.
• Compatibility: Verify support for your laptop, tablet, or phone and operating system.
• Build and portability: Cable length, enclosure materials, and weight matter for travel.

You can use site filters and customer reviews to compare specs, ports, and use cases before you decide.

USB-C to Ethernet is flexible, but a few constraints apply:

• Speed caps: Throughput is limited by the slowest link—adapter rating, USB bandwidth, cable quality, switch/router port, and your service plan.
• 2.5G support: Higher-than-Gigabit speeds require a compatible adapter and network hardware.
• Power over Ethernet: Typical adapters don’t provide PoE output to power other devices.
• Mobile device behavior: Some tablets and phones may restrict Ethernet features or require settings changes.
• Shared bandwidth: On hubs/docks, multiple active ports can reduce available throughput for Ethernet.
• Drivers and policies: Older systems or managed devices may need drivers or admin approval.

Performance can vary based on device capabilities and network conditions.

Many USB-C to Ethernet adapters are plug-and-play on recent systems, but results can vary. If it doesn’t connect right away, try these steps:

• Reconnect: Unplug and reseat the adapter and cable, then wait a moment.
• Try another port: Some USB-C ports may behave differently, especially on hubs.
• System updates: Updating your device can add built-in support for common chipsets.
• Check permissions: Workplace devices may require admin approval for new hardware.
• Review materials: Follow the included setup guide for any optional driver steps.

When browsing, look for “driver-free” or “plug-and-play” in product descriptions if you prefer a simpler setup.

A few quick checks can help isolate the issue:

• Test the cable/port: Try a different Ethernet cable and a different router/switch port.
• Reseat connections: Unplug and reconnect the adapter and RJ45 firmly.
• Switch USB-C ports: Move the adapter to another port or remove extra hubs.
• Power the hub: If using a multiport hub, connect external power if available.
• Network settings: Temporarily turn off Wi‑Fi and confirm your wired connection is enabled and set to automatic IP (DHCP), if applicable.
• Restart and update: Reboot your device and check for system updates.

Testing the adapter on a second device can help determine whether it’s a compatibility or network issue.