Solo2.5G Ethernet Adapter Photo
BUDGET-FRIENDLY
Double+
Network
Performance
250% the Speed of Gigabit Ethernet
SOLO2.5G PCIe Card
BUDGET-FRIENDLY
Double+ Network Performance
250% the Speed of Gigabit Ethernet
Solo2.5G PCIe Card
2.5 Gigabit Ethernet PCIe Card
Compatible with
Windows® | Linux®‍
(see Tech Specs for full compatibility details)
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Ethernet Cables
Faster Transfers Across Existing Cabling
home. office. gaming. media servers.
Have you recently installed a new Ethernet switch capable of supporting 2.5Gb Ethernet (NBASE-T)? Interested in more than doubling network performance at every desk — economically — using the existing Cat 5e cabling already in your home or office walls? Sonnet has what you need — Solo2.5G™ PCIe Card, an inexpensive Ethernet adapter that adds an RJ45 port with superfast 2.5 Gigabit network connectivity to Windows and Linux computers with PCIe® card slot.
Work from Home Icon
Increase productivity with faster downloads for work-from-home users
Office Intranet Connected to NAS Icon
Experience quicker file transfers between PCs and Network Attached Storage (NAS) in the office or at home
Gamer Icon
Enjoy faster speed and lower latencies for E-sport games and live streams
Home Media Server Icon
Achieve swifter transfers for multiple users from home media servers
Ethernet Cable with Ethernet Switch
Upgrade to superfast 2.5 Gigabit networking with an inexpensive Ethernet switch
Same Connector and Cabling

Faster Speeds with 2.5GbE Switch

Featuring NBASE-T technology (also known as multi-Gigabit Ethernet), Solo2.5G PCIe Card supports 2.5 Gb/s link speeds (2.5GBASE-T) over common Cat 5e or better cabling when used with a compatible 2.5Gb Ethernet switch or 10Gb Ethernet switch with NBASE-T support. Very affordable 2.5GbE models from 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 PCIe Card RJ45 Port
Add 2.5GbE connectivity with a Solo2.5G PCIe Card
Solo2.5G PCIe Card with PC Desktop Computer
Upgrade to 2.5G Ethernet

with Existing Cat 5e Cable

Just simply add Solo2.5G PCIe Card – no need to rewire your building; existing wiring already supports up to 2.5 Gb/s.
Benefits of 2.5Gb Ethernet Explained
Linus Tech Tips

Key Features

Budget Friendly Icon

Budget Friendly

2.5GbE switches and Sonnet Solo2.5G PCIe Card are bargain-priced.

Ethernet Cable Connector Icon

Uses Existing Cabling

Faster transfers supported over common Cat 5e wiring originally installed for Gigabit.

NAS Icon

Backup to NAS Is a Breeze

Back up files to Network Attached Storage 2.5x as fast.

Gaming Icon

Gamer Advantage

A faster network can reduce lag and increase overall smoothness of game play.

Remote Work Icon

Remote Work Made Easy

Saves valuable time by downloading files faster.

Media Icon

Enhances Media Sharing

Enables more people to connect to a media share server with less delay and lag.

Free lifetime tech support icon.

Sonnet Support

Founded in 1986 in Orange County, Southern California — long recognized as a vibrant hub of technology and engineering — Sonnet has been at the forefront of innovation for nearly four decades. We’ve introduced award-winning products that expand performance and connectivity for Mac, Windows, and other industry-standard computers. Many of our team members have been with us for more than 20 years, bringing unmatched expertise across both current and legacy products. Should you ever need technical support, you can count on our knowledgeable staff to provide the help you need.

Computer Lab with PC Desktop Computers
ECONOMICAL
More Than Double Network Performance at Every Desk
Zero Driver Installation Icon

Easy and Fast Upgrade

1
Install the Sonnet card
2
Connect your existing network  cable
3
Enjoy 2.5x as fast performance
Solo2.5G PCIe Card Installed In a Windows PC Desktop Computer
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.

Why Choose Sonnet for Ethernet Networking?

We've got what you need for 25GbE, 10GbE, 5GbE, and 2.5GbE connections

  • macOS, Windows, and Linux support
  • 25GbE, 10GbE, 5GbE, and 2.5GbE network experts
  • One provider for all your networking solutions
  • Adapters for Thunderbolt computers
  • Single- and dual-port adapters
  • Copper and optical adapters
  • Networking PCIe cards

Learn More

Networking Adapters › Networking PCIe Cards ›

Why Choose Sonnet for Ethernet Networking?

We've got what you need for all networking connections

  • macOS, Windows, and Linux support
  • 25GbE, 10GbE, 5GbE, 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
  • 1Gb
  • RJ45
  • Broadcom
Solo2.5G Adapter Hero Photo
Solo2.5G USB-C to 2.5 Gigabit Ethernet Adapter
Learn More
  • 2.5Gb
  • 1Gb
  • 100 Mb
  • RJ45
  • Realtek
Solo2.5G Adapter Hero Photo
Solo5G USB-C to 5 Gigabit Ethernet Adapter
Learn More
  • 5Gb
  • 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
Twin25G 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+ V2 PCIe Card
Learn More
  • 10Gb
  • SFP+ socket including SFP+ SR transceiver
  • Intel
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 PCIe Card

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