Twin25G Blazing Fast 25GbE Networking with Dual SFP28 Sockets with Two 25GBASE-SR TransceiversTwin10G Product Hero Photo
Blazing Fast 25GbE Networking

Twin25G

25 Gigabit Ethernet Thunderbolt Adapter with Two SFP28 Transceivers

for computers with Thunderbolt™ 4 or Thunderbolt 3 ports

Incredible 25GbE Connectivity Over Thunderbolt

Many post-production shared storage workgroups and other bandwidth-intensive workflows have reached a point where 10Gb Ethernet (10GbE) does not provide enough bandwidth and speed for optimum performance. Stepping up to 25Gb Ethernet (25GbE) makes a lot of sense — it offers greater performance and often works with the same optical network infrastructure as 10GbE. For these workgroups, there is now a cost-effective 25GbE interface for your Mac®, Windows®, or Linux® computer with Thunderbolt™ 4 or Thunderbolt 3 ports — Sonnet’s Twin25G™, an affordable yet powerful solution for adding incredibly-fast fiber optic 25GbE network connectivity.

Gradient Fade Into Next ImageTwin25G Hero Photo Over 256GbE Networking Globe
Affordable 25GbE Networking

Make the Switch

Postproduction workflows’ needs for speed and increased network bandwidth beyond the current 10Gb standard  have increased more quickly than the availability of affordable higher speed network components. Recently, extremely affordable 25Gb Ethernet switches have become available, but connecting a computer with Thunderbolt ports — such as a Mac Studio® — to a 25GbE infrastructure has remained expensive. Until now. Sonnet’s Twin25G Thunderbolt adapter is the most cost-effective and powerfully simple solution for adding incredible 25GbE network connectivity to your computer without PCIe card slots.

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 Thunderbolt 4 or Thunderbolt 3 ports.

SFP28 Transceiver Icon

SFP28 Transceivers Included

High-performance adapter includes two 25GBASE SFP28 transceivers.

Easy Setup Icon

Backward Compatible

Adapter 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, Including Apple M series Macs

Supports Apple M series and Macs with Thunderbolt 4, Thunderbolt/USB4, and Thunderbolt 3 ports.

Intel Windows Compatible Icon

Windows Compatible

Supports Windows computers with Thunderbolt 4 and Thunderbolt 3 ports.

Linux Compatible Icon

Linux Compatible

Supports Linux computers with Thunderbolt 4 and Thunderbolt 3 ports.

40Gpbs Icon

40Gbps Thunderbolt Device

40Gbps Thunderbolt supports the full bandwidth of one 25GbE port.

Thunderbolt 3 Ports Icon

Two Thunderbolt Ports

One port connects to computer; second port provides 15W for a Thunderbolt or USB 3 device; or to connect up to an 8K display.

Rugged Icon

Compact. Nearly Noiseless.

Adapter is small enough to comfortably fit on any desktop, and quiet enough for use in noise-sensitive environments. You’ll hardly notice it’s there.

Free Lifetime Tech Support
Twin25G Connected to MacBook Pro
Fan Icon
Compact and Nearly Noiseless

Cool Running

Small enough to easily fit in most workspaces, the Twin25G adapter is still large enough to support proper airflow inside its case to enable the adapter’s temperature-controlled, variable-speed fan to keep the adapter always running cool and quiet.
Top of Networking Globe
Networking Globe with Twin25G, SFP28 Transceivers, and Thunderbolt Cable

Everything You Need to Connect Is Included

Simply connect the Twin25G adapter to your computer via the included 40Gbps Thunderbolt cable, install a driver, install the included SFP28 modules, connect the adapter to the network switch or directly to 25GbE-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).
Optical Cables Connected to Twin25G
Intelligent Operation

Efficient Performance

The Twin25G adapter attains high throughput performance with minimal host CPU load. The adapter’s smart controller has its own internal processing system with onboard memory to process TX/RX data while using few CPU resources. Once data appears in queues, TX checksums are computed on the fly as data is transmitted; RX checksums are quickly verified, and data is immediately passed directly to main memory. This independent controller action minimizes latency and avoids packet drops. The CPU is freed for other tasks.
All the Right Connections

40Gbps Thunderbolt Cable and ThunderLok 3 Included

Sonnet includes a Thunderbolt cable that supports Thunderbolt’s full 40Gbps bandwidth, and is fully compatible with Thunderbolt 4 and Thunderbolt 3 computers. Sonnet also provides a ThunderLok™ 3 Thunderbolt connector retainer clip that prevents accidental cable disconnections — just slide it over one end of the cable, and then plug in the connector and secure it to the chassis by turning a thumbscrew. Because of its unique design, ThunderLok remains on the cable so it won’t get lost when not in use.
Thunderbolt Cable with ThunderLok 3Supports Full 40Gbps Thunderbolt Bandwidth
40Gbps Thunderbolt Ports Icons
Dual 40Gbps Thunderbolt Ports
One port is reserved for the connection to your Thunderbolt 4 or Thunderbolt 3 computer; the second port provides 15W for a Thunderbolt or USB 3 device; or to connect up to an 8K display.
10Gbps USB 3.1 Gen 2 Icon
10Gbps USB 3.2 Gen 2 Support
10Gbps USB 3.2 Gen 2 support allows you to connect a USB device to the second Thunderbolt port.
15W Power Icon
Provides 15W of Power
For peripherals requiring power, 15 watts is provided to bus-powered devices.
5K Display Icon
Supports Connecting One Up to 8K Display
Maximize the utilization of one computer Thunderbolt port, connecting the largest display supported by your computer.

Why Choose Sonnet for Ethernet Networking?

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

  • macOS, Windows, and Linux support
  • 10GbE and 25GbE 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 4 or Thunderbolt 3 ports
Solo10G Photo
Solo10G
Learn More
  • 10Gb
  • 2.5/5Gb
  • 1Gb
  • RJ45
  • Marvell
  • macOS 10.13+
  • Windows 10, 11
  • Windows Server 2019, 2022
  • Linux Kernel 5.0+
  • ESXi 7+
Solo10G SFP+ Photo
Solo10G SFP+
Learn More
  • 10Gb
  • SFP+ socket with SFP+ SR transceiver
  • Marvell
    • macOS 10.13+
    • Windows 10, 11
    • Linux Kernel 5.0+
    • ESXi 7+
    Twin10G Photo
    Twin10G
    Learn More
    • 10Gb
    • 1Gb
    • 2x RJ45
    • Intel
      • macOS 10.13+
      • Windows 10, 11
      • Linux Kernel 5.0+
      • ESXi 7+
      Twin10G SFP+ Photo
      Twin10G SFP+
      Learn More
      • 10Gb
      • 2x SFP+ transceivers included
      • Intel
      • macOS 10.13+
      • Windows 10, 11
      • Linux Kernel 5.0+
      • ESXi 7+
      Twin25G Photo
      Twin25G
      Learn More
      • 25Gb
      • 10Gb
      • 2x SFP28 transceivers included
      • Mellanox
        • macOS 12+
        • Windows 10, 11
        • Linux Kernel 5.0+
        For computers or Thunderbolt expansion systems with PCIe slots
        Solo10G PCIe Card Photo
        Solo10G PCIe Card
        Learn More
        • 10Gb
        • 2.5/5Gb
        • 1Gb
        • RJ45
        • Marvell
        • macOS 10.13+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        Solo10G SFP+ PCIe Card Photo
        Solo10G SFP+ PCIe Card
        Learn More
        • 10Gb
        • SFP+ socket including SFP+ SR transceiver
        • Marvell
        • macOS 10.13+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        McFiver PCIe Card 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
        • macOS 12+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        Twin10G 10GBASE-T PCIe Card Photo
        Twin10G 10GBASE-T PCIe Card
        (formerly known as Presto 10GBASE-T PCIe Card)
        Learn More
        • 10Gb
        • 1Gb
        • 2x RJ45
        • Intel
        • macOS 10.13+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        Twin10G SFP+ PCIe Card Photo
        Twin10G SFP+ PCIe Card
        (formerly known as Presto 10GbE PCIe Card)
        Learn More
        • 10Gb
        • 2x SFP+ transceivers included
        • Intel
        • macOS 10.13+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        Twin25G PCIe Card Photo
        Twin25G PCIe Card
        Learn More
        • 25Gb
        • 10Gb
        • 2x SFP28 transceivers included
        • Mellanox
        • macOS 12+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        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