⚡ Just Arrived: OWC Envoy Ultra Thunderbolt 5 SSD Now in 8TB – Extreme Speed, Massive Storage!

Flexx International Ltd
  • 0
No result found for your search.
  • Home
  • Adapters
  • Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
  • electro-track-order-icon
  • Free Delivery
  • electro-thumb
  • 99% Customers
    Feedback
  • electro-return-icon
  • 30 Days
    Return Policy
  • electro-payment
  • Payment
    Secure System
  • electro-brands-icon
  • Only Best
    Brands
Categories
  • Mac Upgrades Hub
    • iMac Upgrades
    • Mac Pro Upgrades
    • Mac Studio Upgrades
    • Mac Mini Upgrades
    • MacBook Pro Upgrades
    • MacBook Air Upgrades
    • MacBook Upgrades
    • MacBook Neo Upgrades
  • Mac Upgrade Components
    • RAM Upgrades
    • Internal SSD Upgrades
    • External Storage
    • Docking Stations & Hubs
    • Enclosures
    • Adapters
    • Expansion Cards
    • Batteries
    • M Series Macs
    • Mac PCIe Expansions
    • Mac Upgrade Tools
    • Accessories
  • Memory
    • Laptop/Notebook RAM
    • Desktop RAM
    • Server RAM
    • Gaming RAM
    • RAM Upgrades
  • Storage
    • Internal Storage
    • External Storage
    • External Storage By Connection
    • Encrypted Storage
    • Removable Storage
    • Media & Card Readers
  • Docks & Connectivity
    • Docks/Hubs
    • Enclosures by Type
    • Enclosures by Connection
    • Thunderbolt PCIe Expansion Systems
    • Cables
  • Adapters
    • Drive Adapters
    • Display Adapters
    • Network Adapters
    • Converters/Brackets
    • Expansion Cards (PCIe)
  • Batteries
    • MacBook Pro Battery
    • MacBook Air Battery
    • MacBook Battery
  • Power and Tools
    • Tools & Service Kits
    • Chargers/PSU
  • Peripherals
    • Keyboards
    • Mice
    • iPhone/iPad/Mac Accessories
  • Audio & Visual
    • Video Capture & Streaming
    • Audio & Video
    • Monitors/TVs
  • Bundles
  • Clearance
    • Sale
    • Open Box Items
  • More
    • Components
    • Dashcams/Bodycams
    • Game Console Upgrades
    • Virtual Reality headset - VR
% £-968.49
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers
Sonnettech

Sonnet Twin25G Dual-port 25GbE Thunderbolt Adapter with Two Included SFP28 Transceivers

No reviews
Product SKU: TWIN25G-TB
Available:
Only 0 item in stock
0 item in stock
In stock
Pre-order
Out of stock
£968.49
 
 
Want it delivered by
  • Description
  • Specifications
  • Compatibility
  • Product videos
  • Reviews

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.

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.

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.

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 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.

Key Features

  • Adds High-performance 25GbE Connectivity
  • Two SFP28 Transceivers Included
  • Backward Compatible with 10GbE Infrastructure
  • Mac, Windows, and Linux Compatible
  • 40Gbps Thunderbolt Device
  • Two Thunderbolt Ports – One Port Connects to Computer; Second Port Provides 15W for a Thunderbolt or USB 3 Device; or to Connect to an 8K Display
  • Compact and Nearly Noiseless
  • 2-year Product Warranty
  • Free Lifetime Customer Technical Support
  • Designed and Made In the USA

Package Contents

Twin25G Thunderbolt Adapter
Two 25GBASE-SR (short-range) SFP28 transceivers (installed)
Universal power adapter
Region-specific power cable
0.8- meter Thunderbolt cable
ThunderLok-A connector lock
Documentation

  • Part Number: TWIN25G-TB
  • Warranty: 2-year
  • Form Factor: Thunderbolt 25GbE adapter
  • External Connectors: Two Thunderbolt ports (second port supports a Thunderbolt peripheral, USB device, or a display), Two SFP28 sockets with two 25GBASE-SR optical transceivers, 12V power port
  • 25GbE Controller: Mellanox ConnectX
  • Network Support: 25Gb/s, 10Gb/s
  • Teaming (Link Aggregation): Not Supported
  • Packets: Max packet size: 9000 bytes (jumbo frames)
  • Data Rates Supported per Port: 25Gb/s, 10Gb/s
  • Advanced Features: Flow control, MSI, RSS, multicast filtering, 64-bit address support, Wake-on-LAN not supported
  • Stateless Offloads: TCP, UDP, IPv4 checksum offload; TRO (TCP Receive Offload)
  • Power Adapter: Universal 60W, 100–240V, 50–60 Hz; NRTL Certified – PDF
  • Operating Temperature: 0ºC to 35ºC (32ºF to 95ºF)
  • Dimensions (WxDxH): 4 x 8.25 x 2.75 in. (10.3 x 21 x 7.3 cm)
  • Weight: Adapter + Power Adapter: 2.3 lbs (1.04 kg); Complete Package: 4.1 lbs (1.86 kg)
  • Compliance: RoHS 3, IEC62368-1 & IEC62368-2 Safety
  • Product Manual: PDF
  • Mac Compatibility

    Mac (M series)
    Mac (Intel) with Thunderbolt 3 ports
    macOS 14+
    macOS Tahoe compatible

  • Windows Compatibility

    Windows computer with Thunderbolt 5 or 4 ports
    Windows 11

  • Linux Compatibility

    Linux computer with Thunderbolt 5 or 4 ports
    Linux Kernel 6.1, 6.12

Customer Reviews

Be the first to write a review
Write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
Flexx International Ltd
Got questions? Call us
0800 195 4072
Follow Us
Policies
  • Return and refund policy
  • Shipping Policy
  • Cancellation policy
  • Terms of Service
  • Privacy Policy
  • Legal Notice
Company Info
  • Knowledge Base
  • Contact Us
  • About us
  • FAQ's
  • Blog
Shop
  • Mac Upgrades Hub
  • Mac Upgrade Components
  • Memory
  • Storage
  • Docks & Connectivity
  • Adapters
  • Batteries
  • Power and Tools
  • Peripherals
  • Audio & Visual
  • Bundles
  • Clearance
  • More
Mac Upgrades Hub
  • Mac Upgrades Hub
© 2026 Flexx International Ltd. All Rights Reserved | Made by Banbridge Website Studio
  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • iDEAL Wero
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • USDC
  • Visa
  • Flexx International Ltd
Product successfully added to your Shopping Cart
Continue shopping View cart