This product is discontinued


USB 3 to 5 Gigabit Ethernet (5GbE) Adapter

Includes USB-C to USB-C and USB-A to USB-C cables

Faster Transfers Across Existing Cabling

Have you installed a new NBASE-T™ ready 10 Gigabit Ethernet switch recently, but don’t have Cat 6a cabling required to support 10Gb? Or your corporate Ethernet switch has been upgraded with support for multi-Gigabit Ethernet and you want to economically deliver faster network performance to every desk? Maybe you just have a computer without enough PCIe card slots or Thunderbolt™ ports to add an adapter. How would you like to quadruple your computer’s network connection speeds over existing Cat 5e Ethernet wiring?

Sonnet has what you need—the Solo5G™, an inexpensive USB 3 to 5GbE adapter that adds an RJ45 port with superfast 5 Gigabit network connectivity to Mac®, Windows®, and Linux® computers with USB-A, USB-C, or Thunderbolt 3 ports.

Add 5GbE Ethernet Port Illustration
Add a 5GbE Ethernet port to your computer with USB-A, USB-C, or Thunderbolt 3 ports
Build a High-Speed Intranet Illustration
Build a high-speed intranet in your office or studio by just changing your switch
Add Extra Ethernet Ports to NAS Illustration
Attach to fast NBASE-T Network Attached Storage (NAS)
SoloG5 Ethernet Port

Newer Standard, Faster Speeds

Featuring NBASE-T technology (also known as multi-Gigabit Ethernet), Sonnet's compact Solo5G Ethernet adapter supports 5 Gb/s and 2.5 Gb/s link speeds (5GBASE-T and 2.5 GBASE-T, respectively) over common Cat 5e cabling when used with a compatible multi-Gigabit Ethernet switch or 10 Gigabit Ethernet switch with NBASE-T support. Models from Buffalo, Cisco, Netgear, QNAP, TRENDnet and others are available now.

Connected to the right switch, you can get great performance gains—from 250 to 400 percent the speed of Gigabit Ethernet—without rewiring! In case you’re connecting to a switch without NBASE-T support, the Solo5G also supports 1 Gb/s and 100 Mb/s link speeds.

5 Gbps Speed Graph2.5 Gbps Speed Graph1 Gbps Speed Graph
Upgrade to 2.5G and 5G with Existing Cat 5e Cable – No need to rewire your building; existing wiring already supports up to 5Gbps
Upgrade to 2.5G and 5G with Existing Cat5e Cable – No need to rewire your building; existing wiring already supports up to 5Gbps
Ethernet Cables

Key Features

5 GbE Icon

Adds 5 Gigabit Ethernet Connectivity

Adds a multi-Gigabit Ethernet (RJ45) port to your computer.


Supports NBASE-T Standard

5 Gb/s and 2.5 Gb/s speeds supported when used with a multi-Gigabit compatible switch or router. Also supports 1 Gb/s and 100 Mb/s speeds.

Budget Friendly Icon

Budget Friendly

Low-cost adapter connects your computer to infrastructure via inexpensive Cat 5e (or better) cables at distances up to 100 meters.

Mac, Windows & Linux Icon

Broad Computer Compatibility

Connects to any USB-A, USB-C, or Thunderbolt 3 computer port, or at the end of a Thunderbolt 3 device daisy chain.

Advanced Features Icon

Advanced Features

Hardware encryption prevents unauthorized firmware modification. Energy-Efficient Ethernet (IEEE 802.3az) standard supported.

Easy Configuration Icon

Easy Configuration

Change the adapter’s settings using operating system tools.

Small & Silent Icon

Small and Silent

Adapter is pocketable and uses no fan, perfect for use in noise-sensitive environments.

Bus-powered Icon


Powered through its USB connection, the Solo5G requires no power adapter.

Two USB Cables Included Icon

Two USB Cables Included

Includes USB-C to USB-C cable and USB-A to USB-C cable.

Free Lifetime Tech Support

Little. Bus-powered.

The Solo5G measures just 1.5 inches wide by 3.25 inches deep by 0.7 inches tall, and fits easily into a pocket in your backpack or equipment bag. Enabling truly portable use, the Sonnet adapter is powered by your computer’s USB or Thunderbolt 3 port, connecting via one of the included 0.5-meter USB-C to USB-C or USB-A to USB-C cables.

Includes USB-C to USB-C and USB-A to USB-C Cables
Solo5G Configuration Illustration

Simple Driver Installation, Simple Configuration

To enable your system to support the Solo5G, simply download the macOS®, Windows, or Linux driver from Sonnet and run the installer. To adjust the Solo5G’s settings, just connect the adapter between your computer and the network switch (or directly to multi gigabit-enabled storage), and then configure the settings through the macOS Network control panel, Windows Device Manager, or Linux command line (or graphical utility).

Efficient and Silent

The Solo5G adapter supports the Energy-Efficient Ethernet (IEEE 802.3az) standard, which reduces the adapter’s power demands on your computer. The adapter runs cool enough that it doesn’t need a fan, allowing silent operation.

Solo5G Hardware Encryption

Safe and Secure

The Solo5G incorporates encryption in hardware, protecting the adapter against malicious firmware modification that could enable covert computer access. Any unauthorized attempt to modify the firmware renders the adapter inoperable. This security feature prevents the Solo5G adapter from being reprogrammed, except by a manufacturer’s update using a secure encryption key.

See Tech Specs for footnotes.
Product specifications and information subject to change without notice. Computer hardware and accessories featured in photos that are not included with product are shown for illustration purposes; items sold separately.

Solo5G USB 3 to 5GbE Adapter