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
Solo2.5G
USB-C to 2.5 Gigabit Ethernet Adapter
Compatible with
Mac® | Windows® | Linux® | Chromebook™ | iPad Pro®
(see Tech Specs for full compatibility details)
Buy Now
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) on your network? Interested in economically more than doubling network performance at every desk using the existing Cat 5e cabling already in your office walls? Sonnet has the solution — Solo2.5G™, an affordable USB-C to 2.5 Gb Ethernet adapter that provides an RJ45 port for superfast 2.5 Gigabit network connectivity to Mac, Windows, Chromebook and Linux computers with USB-C® or Thunderbolt™ ports, as well as 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, 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.

NBASE-T Icon

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

Bus-powered

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 Icon

Free Lifetime Tech Support

Founded in 1986 in Orange County, Southern California — the vibrant hub of technology and engineering south of Silicon Valley — Sonnet has been at the forefront of innovation. Over the years, we've developed numerous award-winning products that enhance performance and connectivity for Mac, Windows, and other industry-standard computers. Many of our team members have been with us for over two decades, providing us with extensive expertise about our current and past offerings. If you ever need technical support for any of our products, don’t hesitate to reach out; we’re here to assist you.

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, this 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.

Why Choose Sonnet for Ethernet Networking?

We've got what you need for 25GbE and 10GbE connections

  • 10GbE and 25GbE network experts
  • One provider for all your networking needs
  • Adapters for Thunderbolt computers
  • Single- and dual-port adapters
  • SFP+ (optical) adapters
  • Networking PCIe cards

Learn More

Why Choose Sonnet for Ethernet Networking?

We've got what you need for all networking connections

  • macOS, Windows, and Linux support
  • 25GbE, 10GbE, and 2.5GbE network experts
  • One provider for all your networking connections
  • Adapters for Thunderbolt computers
  • Single- and dual-port adapters
  • Copper and optical adapters
  • Networking PCIe cards
Product
Supported Speeds
Interfaces
Controller
OS Compatibility
For Computers with Thunderbolt Ports
Sonnet Thunderbolt AVB Adapter Hero Photo
Sonnet Thunderbolt AVB Adapter
Learn More
  • 10Gb
  • 1Gb
  • RJ45
  • Broadcom
Solo2.5G Adapter Hero Photo
Solo2.5G Adapter
Learn More
  • 2.5Gb
  • 1Gb
  • 100 Mb
  • RJ45
  • Realtek
Solo10G Thunderbolt Adapter Hero Photo
Solo10G Thunderbolt Adapter
Learn More
  • 10Gb
  • 2.5Gb/5Gb
  • 1Gb
  • RJ45
  • Marvell
Solo10G SFP+ Thunderbolt Adapter Hero Photo
Solo10G SFP+ Thunderbolt Adapter
Learn More
  • 10Gb
  • SFP+ socket with SFP+ SR transceiver
  • Marvell
Twin10G Thunderbolt Adapter Hero Photo
Twin10G Thunderbolt Adapter
Learn More
  • 10Gb
  • 1Gb
  • 2x RJ45
  • Intel
Twin10G SFP28 Thunderbolt Adapter Hero Photo
Twin10G SFP28 Thunderbolt Adapter
Learn More
  • 10Gb
  • 2x SFP28 SR transceivers included
  • Mellanox
Twin25 Thunderbolt Adapter Hero Photo
Twin25 Thunderbolt Adapter
Learn More
  • 25Gb
  • 10Gb
  • 2x SFP28 SR transceivers included
  • Mellanox
For Computers or Thunderbolt Expansion Systems with PCIe Slots
Solo2.5G PCIe Card Hero Photo
Solo2.5G PCIe Card
Learn More
  • 2.5/5Gb
  • 1Gb
  • RJ45
  • Realtek
Solo10G PCIe Card Hero Photo
Solo10G PCIe Card
Learn More
  • 10Gb
  • 2.5/5Gb
  • 1Gb
  • RJ45
  • Marvell
Solo10G SFP+ PCIe Card Hero Photo
Solo10G SFP+ PCIe Card
Learn More
  • 10Gb
  • SFP+ socket including SFP+ SR transceiver
  • Marvell
Twin10G 10GBASE-T PCIe Card Hero Photo
Twin10G 10GBASE-T PCIe Card
Learn More
  • 10Gb
  • 1Gb
  • 2x RJ45
  • Intel
Twin10G SFP28 PCIe Card Hero Photo
Twin10G SFP28 PCIe Card
Learn More
  • 10Gb
  • 2x SFP28 SR transceivers included
  • Mellanox
Twin25G PCIe Card Photo
Twin25G PCIe Card
Learn More
  • 25Gb
  • 10Gb
  • 2x SFP28 SR transceivers included
  • Mellanox
McFiver PCIe Card Hero Photo
McFiver PCIe Card
Learn More
  • 10Gb
  • 2.5/5Gb
  • 1Gb
  • RJ45
  • 2x USB-C 3.2 Gen 2
  • 2x M.2 SSD sockets
  • Marvell
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.

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