Part No. TWIN25G-T5

Blazing Fast 25GbE Networking

Twin25G T5

25 Gigabit Ethernet Thunderbolt 5 Adapter with Two SFP28 Transceivers

Incredible Dual-port 25GbE Connectivity Over Thunderbolt

If your post-production or bandwidth-intensive workflows have pushed past the limits of 10GbE, the jump to 25GbE offers the speed you’ve been missing — often using the same optical cabling already in place. Sonnet’s Twin25G^® T5 Thunderbolt™ 5 Adapter offers a cost-effective, high-performance way to add ultra-fast 25GbE fiber connectivity to Apple M series Macs, Intel Macs with Thunderbolt 3, and Windows or Linux computers with Thunderbolt 5, 4, or USB4 ports.

Affordable 25GbE Networking: Make the Switch

As post-production workflows outgrow 10GbE, new low-cost 25GbE switches make upgrading easier than ever — yet connecting a computer with Thunderbolt or USB4 ports to a 25GbE network has remained expensive. The Twin25G T5 Thunderbolt 5 Adapter changes that, delivering fast, affordable 25GbE connectivity to systems without PCIe slots.

Compact and Nearly Noiseless. Cool Running.
Small enough to easily fit in most workspaces, Twin25G T5 is 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.

Easy Connection – Includes Thunderbolt 5 Cable and SFP28 Modules

Simply install a driver, connect the Twin25G T5 Thunderbolt 5 Adapter to your computer via the included 120 Gbps Thunderbolt 5 cable, 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).

Intelligent Operation. Efficient Performance.

Twin25G 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; your computer’s CPU is freed for other tasks.

Secure Connections for High Performance: Thunderbolt 5 Cable and ThunderLok Included

Sonnet includes a Thunderbolt cable that supports Thunderbolt’s maximum bandwidth and is fully compatible with Thunderbolt 5, 4, 3, and USB4 computers. Sonnet also provides ThunderLok, a Thunderbolt connector cable lock, that prevents accidental cable disconnections.

ThunderLok Advantage: Many Sonnet Thunderbolt products featuring Thunderbolt ports come equipped with threaded mounting holes to securely attach a Sonnet ThunderLok connector lock, preventing Thunderbolt cables from accidentally disconnecting.

Thunderbolt 5: Tomorrow’s Performance. Today.

Twin25G T5 is built with the features and quality you expect from a high-performance Sonnet Ethernet dapter, plus the Thunderbolt 5 interface you need for maximum performance. With 80 Gbps of bi-directional data speed — twice as fast as Thunderbolt 4 — and up to 120 Gbps for higher display bandwidth, you'll revolutionize your productivity.

More Than Just the Fastest External Interface Available

Twin25G T5 features an ultra-high speed Thunderbolt 5 interface that delivers the PCIe bandwidth needed to support both Ethernet ports at maximum performance. While one Thunderbolt port is reserved for connecting your computer, the secondary port enables connection of additional Thunderbolt or USB peripheral devices.

• Connect Four Additional Thunderbolt Devices

The secondary port supports Thunderbolt 5, 4, and 3 peripherals; you can even connect additional self-powered Thunderbolt devices in a daisy chain.

• Supports 80 Gbps, 40 Gpbs, 20 Gbps, and 10 Gbps USB Peripheral

Connect an ultra-fast USB device to the second Thunderbolt port using the proper cable or adapter.

• Power Peripherals

15 watts is provided to bus-powered devices requiring extra power through the secondary Thunderbolt port.

• Supports Connecting One 4K, 5K, 6K, or 8K Display

Maximize the utilization of one computer Thunderbolt port, connecting the highest resolution display supported by your computer.

Key Features & Specifications

• Adds High-performance 25GbE Connectivity – Simply powerful way to add dual optical 25GbE connections to your computer with Thunderbolt 5, 4, or USB4 ports.
• SFP28 Transceivers Included –High-performance adapter includes two 25GBASE-SR 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.
• 80 Gbps Thunderbolt Device – Supports the full bandwidth of two 25GbE ports when connected to a Thunderbolt 5 computer port; one port’s full bandwidth supported with Thunderbolt 4, 3, and USB4 computers.
• Two Thunderbolt 5 Ports – One port connects to computer; second port provides 15W for a Thunderbolt or USB device; or to connect 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.
• Compatibility – Compatible with all M series Macs, and Intel Macs with Thunderbolt 3 ports; Windows computers with Thunderbolt 5 or 4, or USB4 ports; and Linux computers with Thunderbolt 5 or 4, or USB4 ports. See official product page Tech Specs for detailed computer and OS compatibility information.
• Dimensions (WxDxH) – Twin25G T5: 3.0 x 11.6 x 5.9 in. (7.6 x 29.5 x 15 cm); Power adapter: 2.5 x 4.4 x 1.3 in. (6.4 x 11.2 x 3.3 cm).
• Weight –Twin25G T5 and power adapter: 4.4 lbs. (2 kg); Complete package: 5.8 lbs. (2.63 kg).
• Package Contents – Twin25G T5 Thunderbolt 5 Adapter; two 25GBASE-SR (short-range) SFP28 transceivers (installed); universal power adapter; region-specific power cable; 0.8-meter Thunderbolt 5 cable; ThunderLok-A connector lock; and documentation.
• Warranty – 2-year product warranty.
• Customer Support – Lifetime technical support.
• The Sonnet Advantage –Innovating technology since 1986.

* See official product page Tech Specs for details.

Note:Computers and accessories featured in photos are not included with the product. Product specifications are subject to change without notice.

Product Marketing and Technical Info
Visit: Official Product Page

Pre-sales Questions?
Contact: sales@sonnettech.com

WARNING: California’s Proposition 65