Twin25G PCIe Card - Fantastically Fast 25GbE Networking PCIe Card with Dual SFP28 TransceiversTwin10G Product Hero Photo
Fantastically Fast 25GbE Networking

Twin25G PCIe Card

Dual-port 25 Gigabit Ethernet PCIe Card with Two SFP28 Transceivers

for Mac®, Windows®, or Linux® computers with PCIe card slots

Incredible 25GbE Connectivity

Many bandwidth-intensive workflows — including post-production shared storage workgroups — have reached a point where 10Gb Ethernet does not provide sufficient bandwidth and speed for optimum performance. Upgrading to 25Gb Ethernet is the smart choice — it offers greater performance and works with the same optical network infrastructure as 10GbE. Step up to the Sonnet Twin25G™ PCIe Card, an affordable and powerful solution for adding incredibly-fast fiber optic 25GbE network connectivity.

Shared Storage Workgroups Illustration
Fast Network Performance for Shared Storage Workgroups.
Server Room Illustration
Compatible with 10Gb Fibre Networks. Future Proof Support for 25Gb Networks.
Computer Desktop Illustration
Compatible with Mac, Windows, and Linux Computers with PCIe Slots.
Video Editor Editing Video
Affordable 25GbE Networking

Make the Switch

Mac users need faster network speeds and increased bandwidth for postproduction workflows. Recently, 25Gb Ethernet switches have become more affordable, but connecting a 2019 Mac Pro® to a 25GbE infrastructure has been expensive. Sonnet's Twin25G PCIe Card is a cost-effective and simple solution for adding 25GbE network connectivity to not only Mac Pro, but also to any computer with PCIe slots.
25G Ethernet for macOS
SONNETTECH vs. ATTO Technology

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Chart Matrix Icon
PERFORMANCE
Sonnet Twin25G has a performance advantage over ATTO FastFrame N322 under light or heavy loads under macOS.
Ethernet NIC Receive & Send Performance Chart
FUTURE-PROOF DRIVER
The Sonnet macOS driver is built on DriverKit, whereas ATTO uses a Kernel Extension driver. At its 2019 Worldwide Developer Conference, Apple announced DriverKit which is the updated and modernized Software Development Kit for building drivers, and at the same time announced that Kernel Extension drivers would be deprecated. Support for Kernel Extension drivers are due to be retired with a future release of macOS. Customers should choose Sonnet to be assured of future macOS compatibility.
EXCEPTIONAL VALUE
Exceptional performance plus future-proof driver, superior security, mature reliability, Thunderbolt upgradability, and more choices…whew! Who offers the better value? You decide…
SECURITY
Enterprise and government customers, for whom security is paramount (but also any customers who value security), should choose Sonnet. Closing the macOS Kernel to attack vectors from bad actors is a significant advancement for macOS security. The Sonnet Twin25G driver allows customers to maintain the highest security level for macOS. Conversely, to allow the ATTO Kernel Extensions to load, a user must apprehensively downgrade the security settings for macOS.
RELIABILITY
The Sonnet DriverKit driver has already been deployed in thousands of networks and is mature and reliable. If and when ATTO releases a DriverKit driver, it will likely initially be beta.
TB UPGRADABILITY
Sonnet uses modular PCIe interface cards in its Twin25G (and Twin10G) Thunderbolt Adapters. This means that a customer will be able to upgrade a 40Gb Thunderbolt 3 Adapter to an 80Gb Thunderbolt 5 Adapter by simply swapping the Thunderbolt interface card; and/or a customer can upgrade a Twin10G to a Twin25G by simply swapping the Ethernet card. Unfortunately, the ATTO Thunderbolt Adapters are closed boxes and not upgradable.
MORE CHOICES
Sonnet also offers a complete lineup of client network adapters, including Twin10G, Twin10G SFP28, Solo10G, Solo10G SFP+, Solo2.5G, and AVB GbE, available in PCIe cards, bus powered Thunderbolt adapters, and/or upgradable wall-powered Thunderbolt adapters. ATTO neither offers bus-powered Thunderbolt adapters, nor 2.5GbE adapters, nor AVB Ethernet adapters, nor upgradeable Thunderbolt adapters.
SONNETTECH vs ATTO Price Comparison

Key Features

Adds High-performance 25GbE Connectivity Icon

Adds High-performance 25GbE Connectivity

Simply powerful way to add dual optical 25GbE connections to any computer with PCIe card slots.

50GbE Windows and Linux Teaming Icon

50GbE Windows and Linux Teaming

Windows and Linux Teaming supported to double the speed to 50Gb/s.

SFP28 Transceiver Icon

SFP28 Transceivers Included

High-performance card includes two 25GBASE SFP28 transceivers.

Backwards to 10GbE Icon

Backward Compatible

PCIe card also supports 10GbE — enables you to integrate with 10GbE infrastructure now and upgrade your switch or shared storage system to 25GbE later.

Mac Compatible Icon

Mac Compatible

Supports 2019 Mac Pro running macOS® 13.

Intel Windows Compatible Icon

Windows Compatible

Supports computers with PCIe 3.0 or 4.0 slots running Windows or Windows Server.

Linux Compatible Icon

Linux Compatible

Supports computers with PCIe 3.0 or 4.0 slots running Linux Kernel 5.0+.

Thunderbolt Icon

Great for Use in Thunderbolt Expansion Systems

Use in a Sonnet multi-slot Echo Thunderbolt expansion system to add 25Gb Ethernet to your computer without expansion card slots; see Tech Specs for important details.

Free lifetime tech support icon.

Sonnet 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.

Echo III Desktop Thunderbolt Expansion System with iMac
Perfect Companion

for Echo Thunderbolt Expansion Systems

Use a free slot in a Sonnet multi-slot Echo Thunderbolt expansion system to add 25Gb Ethernet to your computer without card slots; see Tech Specs for important details.
Echo III Desktop without Cover Showing Twin25G PCIe Card Installed
Twin25G Thunderbolt Adapter with MacBook Pro
Got Thunderbolt, But Need Only 25G Ethernet?
Check our the Twin25G Thunderbolt adapter for computers with Thunderbolt 4 or Thunderbolt 3 ports. It’s compact, offers the same connectivity, and gives you the performance you need.
Office Network
Storage Environments

Efficient NVMe Storage Access

NVMe storage devices are gaining popularity by offering very fast storage access. Sonnet Twin25G offers performance enhancements not only by delivering higher network speed, but also by providing NVMe over Fabric (NVMe-oF) target offloads, enabling very efficient NVMe storage access with no CPU intervention, thus improving performance and reducing latency. Compared to multi-fabric teamed 10G networks, a consolidated 25G storage network achieves significant cost and performance advantages with fewer cables and switch ports, which also lowers power requirements.
25GbE High Performance, Lower Latency DIagram
Twin25G PCIe Card Shown with Full-profile Bracket and Separate Included Low-profile Bracket
Includes Two Mounting Brackets

Install Card Into Any PCIe Slot

The Twin25G PCIe Card is packaged with both full-height and low-profile mounting brackets, enabling installation of the card into any PCIe slot.
Twin25G PCIe Card Installed In Mac Pro 2019 x8 PCIe Slot
Install and Connect

Simple Installation

Simply install the Twin25G PCIe Card into a PCIe slot in your computer or Sonnet Thunderbolt PCIe card expansion system, install a driver, install the included SFP28 modules, and then connect the card to the network switch or directly to 25GbE-enabled storage. Configure the adapter’s settings through the macOS Network control panel, Windows Device Manager, or Linux command line (or graphical utility).
Hand Installing PCIe Card Icon
Install Card Into a PCIe Slot
Software Driver Icon
Install Driver
Cable Connecting to Switch Port Icon
Connect to Switch
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Configure Settings

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

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
Twin25 Thunderbolt Adapter
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  • 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.

Twin25G PCIe Card