Best RJ-45 USB Adapters of 2026

Name: Belkin USB-C to Gigabit Ethernet Adapter
Brand: Belkin

Kenneth Collin

Last Updated: 4 Feb 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

RJ-45 USB Adapters are compact and portable devices that allow users to connect their laptops or desktops to a network via an Ethernet cable. These adapters are designed to provide a fast and reliable connection to the internet or other networks, making them ideal for professionals who need to work remotely or in areas with poor Wi-Fi connectivity. With their plug-and-play functionality, RJ-45 USB Adapters are easy to use and require no additional software or drivers. They are a cost-effective solution for those who want to upgrade their network connectivity without having to purchase a new computer or expensive networking equipment.

At a Glance: Our Top Picks

#TOP 1

Belkin USB-C to Gigabit Ethernet Adapter

9.8

Buy on Amazon Read Review

#TOP 2

i-tec USB-C Metal Gigabit Ethernet Adapter, 1x USB-C to RJ-45, 10/100/1000 Mbps

9.7

Buy on Amazon Read Review

#TOP 3

j5 create JCA374 USB Type-C HDM RJ-45 Multi Adapter

9.5

Buy on Amazon Read Review

Top 3 RJ-45 USB Adapters

#TOP 1

Belkin USB-C to Gigabit Ethernet Adapter

Belkin
F2CU040btBLK
Black
Ethernet

Belkin F2CU040btBLK USB-C to Gigabit Ethernet Adapter (USB-IF Certified, Compatible with MacBook Pro (2016), Dell XPS 13 inch), Black

The Belkin Ethernet Adapter is designed for USB-C devices, ensuring a reliable connection when wireless options fail. With a hard-wired USB-C to Gigabit Ethernet link, you can enjoy enhanced speed and endurance, making it perfect for tasks that require stable internet access. It features Gigabit Ethernet connectivity and supports 10/100/1000BASE-T, allowing for high-speed data transfer. Measuring 15cm in length, this adapter is compact and convenient, making it easy to carry and use wherever you go.

9.8

Buy on Amazon Find on eBay

What We Like

Reliable wired connection
Fast Gigabit Ethernet speeds
Compact and portable design
Compatible with various devices

#TOP 2

i-tec USB-C Metal Gigabit Ethernet Adapter, 1x USB-C to RJ-45, 10/100/1000 Mbps

i-tec
3G60098
grey

i-tec USB-C Metal Gigabit Ethernet Adapter, 1x USB-C to RJ-45, 10/100/1000 Mbps, LED, for laptop tablet PC with USB-C connector, compatible with Thunderbolt 3, Windows, Mac, Linux, Android

Features

1x USB-C 3.1 Connector, For Connecting To A Laptop, Tablet Or PC, Fast Network And Internet Access With Gigabit Ethernet Connection, 1x Ethernet GLAN RJ-45 Port Supports 10 / 100 / 1000 Mbps Speeds
Expand Your Laptop, Tablet Or PC With New USB-C Or Thunderbolt 3 Connector To Gigabit Ethernet Port For High Speed Internet Access
Supports Wake-On-LAN, Jumbo Frame Up To 9k Bytes, Detection Of Cable Crossover MDI / MDIX Support IEEE 802.3az (Energy Efficient Ethernet) And IPv4/IPv6 Pack Checksum Offload Engine (COE) To Reduce CPU Loading

9.7

Buy on Amazon Find on eBay

#TOP 3

j5 create JCA374 USB Type-C HDM RJ-45 Multi Adapter

j5create
JCA374
Gold, White

j5 create JCA374 USB Type-C HDM RJ-45 Multi Adapter - Gold/White

Features

Display Alt Mode For HDMI: Supports Display Max Resolution: 4K@30HZ / 1080p@60HZ, Supports 1080p Video Playback, Supports Display Modes: Primary, Extended, Mirror
USB 3.0 SuperSpeed: Transfer Rates Of Up To 5Gbps Enables Bulky File Backup, Backwards Compatible With USB 2.0 And USB 1.1 Devices, Hot-Swapping Connect/disconnect Without Powering Down
USB 3.0 Gigabit Ethernet: USB 3.0 Plug-And-Play And Backwards Compatible With USB 2.0 And 1.1, IEEE 802.3, 802.3u And 802.3ab (1BASE-T, 100BASE-TX, And 1000BASE-T) Compatible

9.5

Buy on Amazon Find on eBay

Frequently Asked Questions (FAQs)

1. What is a USB to RJ-45 adapter?

The USB 2.0 to Ethernet network adapter dongle provides an Ethernet port for network connection. The adapter converts RJ45 female to USB 2.0 male to connect the internet to PC via the USB interface. The adapter dongle is perfect for the computer which does not have an Ethernet port.

2. Does Ethernet to USB adapter work?

USB protocol and ethernet protocols are completely incompatible and a passive wiring plug (like these) can not convert one into the other. What you can do is cobble to together a converter to wire an USB plug onto an UTP cable so you can transfer the USB signal over existing UTP cabling.

3. What is USB to RJ45 cable used for?

USB 2.0 Type A Male to RJ45 Ethernet Adapter. The USB to Ethernet adapter allows you to convert a USB 2.0 port to a communication Ethernet port, ready to connect to your LAN or internet. This adapter is great for older computers without an ethernet port.

Editor's Notes

During our rj-45 usb adapter research, we found 3 rj-45 usb adapter products and shortlisted 3 quality products. We collected and analyzed 24,921 customer reviews through our big data system to write the rj-45 usb adapters list. We found that most customers choose rj-45 usb adapters with an average price of £28.81.

The rj-45 usb adapters are available for purchase. We have researched hundreds of brands and picked the top brands of rj-45 usb adapters, including Belkin, i-tec, j5create.

Written by

Kenneth Collin

Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.