Twin25G T5 Thunderbolt 5 Adapter (Dual-port • 25GbE • Includes two SFP28 transceivers • Thunderbolt 5)
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

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.

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

Easy Connection – Includes Thunderbolt 5 Cable and SFP28 Modules
Simply install a driver, connect the

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
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.

More Than Just the Fastest External Interface Available

• Connect Four Additional Thunderbolt Devices
The secondary port supports
• 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.
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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.
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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 withThunderbolt 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.
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Compatibility – Compatible with all
M series Macs, and Intel Macs withThunderbolt 3 ports; Windows computers withThunderbolt 5 or 4, or USB4 ports; and Linux computers withThunderbolt 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).
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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.
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Product Marketing and Technical Info
Visit: Official Product Page
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Pre-sales Questions?
Contact: sales@sonnettech.com
WARNING: California’s Proposition 65