Solo2.5G Ethernet Adapter Photo
Double+ Network Performance
250% the Speed of Gigabit Ethernet
Solo2.5G Ethernet Adapter Photo
Double+ Network Performance
250% the Speed of Gigabit Ethernet
USB-C to 2.5 Gigabit Ethernet Adapter
Compatible with
Mac® | Windows® | Linux® | Chromebook™ | iPad Pro®
(see Tech Specs for full compatibility details)
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MacBook Pro with Ethernet Cable
Faster Transfers Across Existing Cabling
Have you recently installed a new Ethernet switch capable of supporting 2.5 Gb Ethernet (NBASE-T)? Interested in more than doubling network performance at every desk — economically — using the existing Cat 5e cabling already in your office walls? Sonnet has what you need — Solo2.5G™, an inexpensive USB-C to 2.5 Gb Ethernet adapter that adds an RJ45 port with superfast 2.5 Gigabit network connectivity to Mac, Windows, Chromebook and Linux computers with USB-C® or Thunderbolt™ ports, and iPad tablets with USB-C or Thunderbolt ports.
Ethernet Port Icon
Add a 2.5 GbE Ethernet port to your computer with USB-C or Thunderbolt ports
Office Intranet Icon
Build a high-speed intranet in your office or studio by just changing your switch
Network Storage (NAS) Icon
Attach to fast NBASE-T Network Attached Storage (NAS)
WiFi Router Icon
Connect directly to a 2.5Gb Ethernet-capable WiFi Router
Modern Office with Collaborating Workers
Same Connector and Cabling

Faster Speeds with 2.5 GbE Switch

Featuring NBASE-T technology (also known as multi-Gigabit Ethernet), Sonnet's compact Solo2.5G adapter supports 2.5 Gb/s link speeds (2.5GBASE-T) over common Cat 5e or better cabling when used with a compatible 2.5 Gb Ethernet switch or 10 Gb Ethernet switch with NBASE-T support. Very affordable 2.5 GbE models from Asustor, Cisco, D-Link, Netgear, QNAP, TP-Link, TRENDnet, and others are available now. 

Connected to the right switch, you can get great performance gains — 250 percent the speed of Gigabit Ethernet — without rewiring! In case you’re connecting to a switch without NBASE-T support, the Solo2.5G also supports 1 Gb/s and 100 Mb/s link speeds.

250% the Speed of Gigabit Ethernet

Solo2.5G with Ethernet Cable Connected
Upgrade to 2.5G Ethernet

with Existing Cat 5e Cable

No need to rewire your building; existing wiring already supports up to 2.5Gbps

Key Features

Ethernet Port Icon

Adds 2.5 Gigabit Ethernet Connectivity

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


Supports NBASE-T Standard

2.5Gb/s speed 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.

Broad Compatibility Icon

Broad Computer Compatibility

Connects to any USB-C or Thunderbolt computer port, or at the end of a Thunderbolt device daisy chain. Also works with certain iPad® tablets.

Zero Driver Installation Icon

Zero Driver Installation

The drivers that support Solo2.5G are part of your computer’s operating system software; there’s nothing for you to install.

Easy Configuration Icon

Easy Configuration

Change the adapter’s settings using operating system tools.

Small and 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 Solo2.5G requires no power adapter.

USB Cable Icon

USB Cable

Convenient USB-C captive cable.

Free Lifetime Tech Support
Solo2.5G Stored In Equipment Bag
Little. Bus-powered.
Solo2.5G measures just 1.2 inches wide by 2.8 inches deep by 0.6 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 port, connecting via the attached 0.3-meter USB-C cable.
Zero Driver Installation Icon

Zero Driver Installation, Simple Configuration

There’s no software for you to install — just connect Solo2.5G to your computer and to the network switch (or directly to 2.5GbE-enabled storage), and then configure the adapter’s settings through the macOS® Network control panel, Windows Device Manager, or Linux command line (or graphical utility). How’s that for simple?
IEEE802.3az Icon

Efficent, Silent, and Runs Cool

Solo2.5G supports the Energy-Efficient Ethernet (IEEE802.3az) standard, which reduces the adapter’s power demands on your computer. The adapter runs cool and silent.
Fast Network Attached Storage (NAS)

Faster Connection to Your NAS

Solo2.5G enables you to achieve faster file transfers to and from your Network Attached Storage (NAS) with 2.5 GbE support.

Solo2.5G USB-C to 2.5 Gigabit Ethernet Adapter