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Sonnet Technologies Twin10G (Thunderbolt 3 Edition)
Sonnet Technologies Twin10G (Thunderbolt 3 Edition)

Sonnet Technologies Twin10G (Thunderbolt 3 Edition)


- Adds 10GBASE-T 10GbE Connectivity
- Cost-effective
- Easy Setup
- 40Gbps Thunderbolt 3 Interface
- Two Thunderbolt 3 Ports
- Small. Rugged. Nearly Noiseless.
- Supports Transparent Failover
- Supports Link Aggregation (Teaming)
- Provides 10W of Power for Connected Peripherals
- Includes 0.7-meter Thunderbolt 3 (40Gbps) cable
- Includes Sonnet's ThunderLok 3 Thunderbolt Connector Retainer Clip
- Mac, Windows, and Linux Compatible
- 2-year Product Warranty
- Free Lifetime Customer Technical Support
- Designed and Made in the USA

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Blazing-fast 10GBASE-T (Copper) Connectivity Over Thunderbolt 3 for Mac, Windows, and Linux Computers

Increased demand for greater data transfer speeds and more bandwidth on high-performance shared storage networks has driven the explosion in demand for 10Gigabit Ethernet (10GbE) networking. Yet, most computers aren’t equipped to get you connected. If your computer has a Thunderbolt™ 3 port, you are in luck—Sonnet’s Twin10G™ (Thunderbolt 3 Edition) 10GbE adapter is the powerfully simple and most cost-effective solution for adding blazing-fast dual-port 10GBASE-T 10GbE network connectivity to any Mac®, Windows®, or Linux® computer with Thunderbolt 3 ports.


Connect to 10GbE Infrastructure

The Twin10G (Thunderbolt 3 Edition) adapter is equipped with two RJ45 ports, enabling it to connect to 10GbE infrastructure via inexpensive Cat 6 or Cat 6A copper cabling at distances up to 55 or 100 meters, respectively.


Small and Nearly Noiseless

The Twin10G (Thunderbolt 3 Edition) adapter is compact enough to easily fit in most workspaces, yet large enough to support proper airflow inside the case—its design enables the adapter’s temperature-controlled, variable-speed fan to keep the adapter running cool and whisper-quiet at all times, making it suitable for use in noise-sensitive environments. Constructed of rugged and lightweight aluminum, the adapter’s outer shell securely protects the inner circuitry.


Simplified Setup

How simple? Just connect the Twin10G (Thunderbolt 3 Edition) adapter to your computer via the included Thunderbolt 3 (40Gbps) cable, download and install a driver, connect the adapter to the network switch or directly to 10GbE-enabled storage via Cat 6 or Cat 6A cables, and configure the adapter’s settings through the macOS® Network control panel, Windows Device Manager, or Linux command line (or graphical utility).


Intelligent Operation

The Twin10G (Thunderbolt 3 Edition) adapter attains its high throughput performance and low host-CPU utilization through functions such as flow control, 64-bit address support for systems using more than 4GB of physical memory; and stateless offloads such as TCP, UDP and IPv4 checksum offloading. These processes enable your computer to perform better while large files transfers or high I/O operations take place. This Sonnet adapter’s dual 10GbE connections support transparent failover to keep your computer connected in case a single cable is disconnected or one of the ports fails, and also support link aggregation (teaming) for increased throughput!


Thunderbolt 3 – The USB-C That Does It All

Thunderbolt 3 ports; the first connects the adapter to your computer, while the second supports daisy-chaining of up to five additional Thunderbolt peripheral devices to a single port on your computer. The Sonnet adapter includes 10Gbps USB 3.2 Gen 2 support, meaning you can connect a USB device to the second port using the proper cable or adapter. The Twin10G also provides full support for connecting two 4K displays @ 60Hz or one 5K display @ 60Hz. For connected devices requiring extra power, 15 watts is provided to connected bus-powered devices.




Mac Compatibility

- Mac (Intel®) with Thunderbolt 3 ports

- Mac (Intel) with a Thunderbolt 2 or Thunderbolt port with an Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter plus a Thunderbolt 2 cable (both sold separately)

- Mac (M1) not currently compatible (Sonnet M1-compatible driver expected Q1 2021)

- macOS 10.12.6+

- macOS Big Sur compatible


Windows Compatibility

- PC with Thunderbolt 3 ports

- Windows 10 (64-bit Edition Version 1809 or greater)

- IMPORTANT NOTE: Windows computers require the latest BIOS and Thunderbolt drivers to support this product. Check with your computer manufacturer for update information.


Linux Compatibility

- Linux computer with Thunderbolt 3 ports

- Linux Kernel 5.0+







Form Factor

Thunderbolt 3 adapter


External Connectors

- Two Thunderbolt 3 ports

- Two RJ45 ports

- 12V power port


10GbE Controller

Intel X550


Network Support

- 10BASE-T (100 meters using Cat 6A cabling; 55 meters using Cat 6 cabling)

- 5GBASE-T, 2.5GBASE-T, 1000BASE-T, 100BASE-TX (100 meters using Cat 5e, Cat 6, or Cat 6A cabling)


Link Aggregation (Teaming)




Maximum packet size: 15872 bytes (jumbo frames)


Advanced Features

- Flow control support

- MSI (Message Signaled Interrupts)

- RSS (Receive-Side Scaling)

- Interrupt coalescing

- Multicast filtering

- 64-bit address support for systems using more than 4GB of physical memory

- Wake-on-LAN support not supported


Stateless Offloads

- TCP, UDP, and IPv4 checksum offloading

- TSO (TCP Segmentation Offload, AKA Large Send Offload)

- LRO (Large Receive Offload)

- RSS (Receiver Side Scaling)


Power Adapter

- Universal 60W, 100-240V, 50-60 Hz

- NRTL Certified


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)



2.95 lbs. (1.34 kg)


RoHS Compliant


In the box

- Twin10G (Thunderbolt 3 Edition) adapter
- 0.7-meter Thunderbolt 3 (40Gbps) cable
- ThunderLok 3 Thunderbolt Connector Retainer Clip
- Universal power adapter
- Power cord
- Documentation


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