USB-C Network Hub: Wired Networking Plus Ports
Wi-Fi is convenient until it is not. A hub with an Ethernet socket restores a stable link and adds ports at the same time, provided the upstream connection can keep up.
Quick Answer
A USB-C network hub provides an RJ45 socket plus USB ports over one USB-C connection. Gigabit models reach about 940 Mbps when the upstream link is USB 3.x. The network chip and the USB ports share the same upstream bandwidth, so heavy file transfers over the network slow anything else on the hub.
Speed Tiers
| Model | Upstream needed | Real throughput | Suits |
|---|---|---|---|
| 100 Mbps | USB 2.0 | About 90 Mbps | Basic office work |
| Gigabit | USB 3.0 | About 940 Mbps | General desktop work |
| 2.5 GbE | USB 3.0 or faster | About 2.3 Gbps | NAS and large file work |
| 5 GbE | USB 3.1 Gen 2 | About 4.5 Gbps | Video editing over network storage |
What to Check
Driver support
Common Ethernet chipsets are covered by in box drivers on Windows, macOS and Linux. Unusual silicon may need a download, which is a problem on locked down machines.
Upstream capability
The USB-C port must carry data. A charging only port will not work at all, and a USB 2.0 port caps throughput far below gigabit.
Bandwidth sharing
Network traffic and USB storage traffic use the same link. A large file copy over the network while reading a drive will slow both.
Power
The network chip draws little. The USB ports are the load, so choose a self powered model if drives are involved.
Real-World Applications
- A thin laptop gaining a stable wired connection at a desk.
- A games console or streaming box where Wi-Fi is unreliable.
- A workshop machine with a printer and network access.
- A field kit for sites with no usable wireless.
Related Guides
For single cable charging, read USB-C hub with power delivery. For port planning, see USB-C hub with multiple ports. For the general hub case, start with USB Type-C hub.
FAQ
Why am I only getting 90 Mbps?
The hub is a 100 Mbps model, or the upstream link is USB 2.0.
Do I need a driver?
Usually not on current operating systems. Check the chipset before buying for locked down environments.
Does Ethernet slow down the USB ports?
Only under heavy simultaneous traffic. They share the upstream link.
Is 2.5 GbE worth it?
Only if the switch and the remote device also support 2.5 GbE.