Sonnet

Sonnet TWIN25GTB Twin25G Thunderbolt 25Gb Ethernet Adapter

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SKU:
20808758
MPN:
twin25g-tb
Availability:
Usually ships the same or next business day. In stock at our MS warehouse.
Shipping:
Calculated at Checkout
Stock Update:
02/28/2026 11:33:16 PM PST
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$892.77
Stock Update:
02/28/2026 11:33:16 PM PST

Description

This item is brand-new, factory sealed.

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.

The Twin25G Thunderbolt Adapter is a pre-configured bundle of Sonnet Twin25G PCIe Card with Sonnet Echo Express SEL Thunderbolt Expansion Chassis.

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.

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 Transceivers Included

High-performance adapter includes two 25GBASE SFP28 transceivers.

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, Including Apple M series Macs

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

Windows Compatible

Supports Windows computers with Thunderbolt 4 and Thunderbolt 3 ports.

Linux Compatible

Supports Linux computers with Thunderbolt 4 and Thunderbolt 3 ports.

40Gbps Thunderbolt Device

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

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.

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

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.



Package Contents:
  • Twin25G Thunderbolt Adapter
  • 2 x 25GBASE-SR (Short-Range) SFP28 Transceivers (Installed In Enclosure)
  • 0.7- Meter Thunderbolt Cable
  • ThunderLok (Thunderbolt Connector Retainer Clip)
  • Universal Power Adapter
  • Region-Specific Power Cable For US, Australia, Europe, Japan, Switzerland, or UK
  • Documentation

Features

Package Contents:   
  • Twin25G Thunderbolt Adapter
  • 2 x 25GBASE-SR (Short-Range) SFP28 Transceivers (Installed In Enclosure)
  • 0.7- Meter Thunderbolt Cable
  • ThunderLok (Thunderbolt Connector Retainer Clip)
  • Universal Power Adapter
  • Region-Specific Power Cable For US, Australia, Europe, Japan, Switzerland, or UK
  • Documentation

 

Operating System Compatibility:

Linux Kernel 5.4+
macOS 13+
macOS Sequoia
Windows 10
Windows 11

 

Application/Usage:   
Network

 

Environmental Compliance:   
Restriction of Hazardous Substances (RoHS) 3

 

Country of Origin:   
United States

 

Specs

Physical Characteristics
Height2.8"
Width4"
Depth8.3"
Warranty
Limited Warranty2 Year
Interfaces/Ports
Total Number of Ports2
Host InterfaceThunderbolt 5
I/O Expansions
Total Number of Expansion Slots2
Expansion Slot TypeSFP28
General Information
Brand NameSonnet
Manufacturer Website Addresshttp://www.sonnettech.com
Marketing InformationIncredible 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.
The Twin25G Thunderbolt Adapter is a pre-configured bundle of Sonnet Twin25G PCIe Card with Sonnet Echo Express SEL Thunderbolt Expansion Chassis.
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.
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 Transceivers Included
High-performance adapter includes two 25GBASE SFP28 transceivers.
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, Including Apple M series Macs
Supports Apple M series and Macs with Thunderbolt 4, Thunderbolt/USB4, and Thunderbolt 3 ports.
Windows Compatible
Supports Windows computers with Thunderbolt 4 and Thunderbolt 3 ports.
Linux Compatible
Supports Linux computers with Thunderbolt 4 and Thunderbolt 3 ports.
40Gbps Thunderbolt Device
40Gbps Thunderbolt supports the full bandwidth of one 25GbE port.
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.
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
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.
Product Type25Gigabit Ethernet Card
Product NameTwin25G Thunderbolt Adapter
ManufacturerSonnet Technologies, Inc
Manufacturer Part NumberTWIN25G-TB
Product LineTwin25G
Media & Performance
Maximum Data Transfer Rate25 Gbit/s
Media Type SupportedOptical Fiber
Network & Communication
Network Technology25GBase-SR
Technical Information
Features

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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Sonnet TWIN25GTB Twin25G Thunderbolt 25Gb Ethernet Adapter
$892.77