Twin10G SFP+ Thunderbolt Adapter in foreground with office worker working behind two monitors in background.Twin10G SFP+ Product Hero Photo
Blazing 10GbE Optical Networking
Dual SFP+ sockets with your choice ofSFP+ transceivers (sold separately)

Twin10G SFP+

Dual-port SFP+ 10 Gigabit Ethernet Thunderbolt Adapter

Compatible with Mac, Windows, and Linux Computers

Blazing-fast 10GbE Optical Connectivity Over Thunderbolt

Are you looking for the most economical dual-port approach to connecting to a high-speed 10 Gigabit Ethernet (10GbE) fiber network? Sonnet’s Twin10G™ SFP+ adapter is the powerfully simple solution for adding blazing-fast dual-port 10GbE optical network connectivity to your computer. It works seamlessly with Apple M series Macs, Intel Macs with Thunderbolt 3 ports, and Windows or Linux PCs equipped with Thunderbolt 5 or Thunderbolt 4 ports.

Twin10G SFP+ Thunderbolt Adapter sitting next to an iMac.

Includes Two SFP+ Transceivers

To connect easily to your 10GbE optical network, Sonnet’s Twin10G SFP+ now includes two short-range multi-mode fibre 10GBASE-SR SFP+ transceivers (up to 300 meters), part number G10E-SFP-SR, at no extra cost.

Additional SFP+ Transceiver Choices

Sonnet also offers two additional SFP+ transceiver options (sold separately) – a long-range single-mode fiber module (up to 10 kilometers), part number G10E-SFP-LR; and a 10GBASE-T copper module (up to 30 meters using Cat 6A cables), part number G10E-SFP-T. Alternatively, you can use cost-effective direct-attach Twinax copper cables up to 10 meters long (sold separately).

Ten times the performance of Gigabit Ethernet badge.

More Bandwidth

Equipped with two SFP+ transceivers, the Twin10G SFP+ adapter supports ten times the performance of Gigabit Ethernet and more bandwidth over shared networks.

Key Features

10GbE icon.

Adds High-performance 10GbE SFP+ Connectivity

Simply powerful way to add dual 10GbE SFP+ connections to your computer with Thunderbolt 4 or Thunderbolt 3 ports.

SFP+ transceiver icon.

SFP+ Transceivers Included

High-performance adapter includes two 10GBASE-SR SFP+ transceivers. Additional SFP+ transceiver choices available (sold separately).

Tools icon.

Easy Setup

Configure the adapter’s settings using operating system tools.

Thunderbolt logo icon.

Thunderbolt Performance

Offers full advantage of the bandwidth performance of Thunderbolt.

Two Thunderbolt ports icon.

Connect Additional Thunderbolt Devices

One port connects to computer; second port supports daisy-chaining additional Thunderbolt peripheral devices.

Rugged icon.

Compact. Rugged. Nearly Noiseless.

Adapter is rugged and small enough to sit on most any work surface, and quiet enough for use in noise-sensitive environments.

Transparent Failover icon.

Supports Transparent Failover

Keeps your computer connected in case a single cable is disconnected or one of the ports fails.

Link icon.

Supports Link Aggregation (Teaming)

Increases throughput beyond what a single connection can sustain (Windows and Linux).

VMWare Ready logo icon.

VMWare Ready

Optimized to meet VMWare’s highest level of endorsement.

Apple Logo Icon

Mac Compatible

Supports all M series Macs and Intel Macs with Thunderbolt 3 ports.

Windows Logo Icon

Windows Compatible

Supports Windows computers with Thunderbolt 5 or Thunderbolt 4 ports.

Linux Logo Icon

Linux Compatible

Supports Linux computers with Thunderbolt 5 or Thunderbolt 4 ports.

Free lifetime tech support icon.

Sonnet 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.

Twin10G SFP+ Thunderbolt Adapter front panel icon.

Compact and Nearly Noiseless

Small enough to easily fit in most workspaces, the Twin10G SFP+ adapter is still 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.

Easy to Set Up

Simply connect the Twin10G SFP+ adapter to your computer via the included 40Gbps Thunderbolt cable, download and install a driver, install SFP+ module(s) (sold separately), connect the adapter to the network switch or directly to 10GbE-enabled storage, and configure the adapter’s settings through the macOS Network control panel, Windows Device Manager, or Linux command line (or graphical utility).

Connect, configure, and speed setup icons.

Intelligent Operation

The Twin10G SFP+ adapter’s high throughput performance and low host-CPU utilization are attained 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 operations 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 fail. Windows and Linux also support link aggregation (teaming) for increased throughput!

Illustration of notebook with light bulb above it.
Sonnet Thunderbolt cable and ThunderLok icon.
Secure Connections for High Performance

Thunderbolt Cable and ThunderLok Included

Sonnet includes a Thunderbolt cable that supports Thunderbolt’s maximum bandwidth and is fully compatible with Thunderbolt 5, 4, and 3 computers. Sonnet also provides ThunderLok, a Thunderbolt connector cable lock, that prevents accidental cable disconnections.
Sonnet Thunderbolt cable with ThunderLok sitting beside it.
Thunderbolt port with threaded hole icon.

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 Technology

Fastest External Interface Available

Sonnet Thunderbolt products feature a high-speed Thunderbolt interface that delivers PCIe bandwidth needed to support data transfers at full speed.

Two Thunderbolt ports icon.
Connect Additional Thunderbolt Devices
One port is reserved for connecting to your computer; the second port enables connection of additional Thunderbolt peripheral devices in a daisy chain.
10Gbps USB 3.2 Gen 2 icon.
10Gbps USB 3.2 Gen 2 Support
10Gbps USB 3.2 Gen 2 support allows you to connect a USB device to the second Thunderbolt port using the proper cable or adapter.
15W power icon.
Provides 15W of Power
For peripherals requiring extra power, 15 watts is provided to bus-powered devices through the secondary Thunderbolt port.
Display icon.
Supports Connecting Up to One 8K Display
Maximize the utilization of one computer Thunderbolt port, connecting the largest display supported by your computer.
Group of computers that feature Thunderbolt ports.

Designed for the Fastest Connection to Thunderbolt Computers

Twin10G SFP+ is purposely designed with a Thunderbolt 3 controller and its four lanes of PCIe (not available in a Thunderbolt 4 peripheral) to achieve maximum simultaneous ingest speeds. Watch this video to learn more about the performance benefits.

Why Choose Sonnet for Ethernet Networking?

We've got what you need for 25GbE, 10GbE, 5GbE, and 2.5GbE connections

  • macOS, Windows, and Linux support
  • 25GbE, 10GbE, 5GbE, and 2.5GbE network experts
  • One provider for all your networking solutions
  • Adapters for Thunderbolt computers
  • Single- and dual-port adapters
  • Copper and optical adapters
  • Networking PCIe cards

Learn More

Why Choose Sonnet for Ethernet Networking?

We've got what you need for all networking connections

  • macOS, Windows, and Linux support
  • 25GbE, 10GbE, 5GbE, and 2.5GbE network experts
  • One provider for all your networking connections
  • Adapters for Thunderbolt computers
  • Single- and dual-port adapters
  • Copper and optical adapters
  • Networking PCIe cards
Product
Supported Speeds
Interfaces
Controller
OS Compatibility
For Computers with Thunderbolt Ports
Sonnet Thunderbolt AVB Adapter Hero Photo
Sonnet Thunderbolt AVB Adapter
Learn More
  • 1Gb
  • RJ45
  • Broadcom
Solo2.5G Adapter Hero Photo
Solo2.5G USB-C to 2.5 Gigabit Ethernet Adapter
Learn More
  • 2.5Gb
  • 1Gb
  • 100 Mb
  • RJ45
  • Realtek
Solo2.5G Adapter Hero Photo
Solo5G USB-C to 5 Gigabit Ethernet Adapter
Learn More
  • 5Gb
  • 2.5Gb
  • 1Gb
  • 100 Mb
  • RJ45
  • Realtek
Solo10G Thunderbolt Adapter Hero Photo
Solo10G Thunderbolt Adapter
Learn More
  • 10Gb
  • 2.5Gb/5Gb
  • 1Gb
  • RJ45
  • Marvell
Solo10G SFP+ Thunderbolt Adapter Hero Photo
Solo10G SFP+ Thunderbolt Adapter
Learn More
  • 10Gb
  • SFP+ socket with SFP+ SR transceiver
  • Marvell
Twin10G Thunderbolt Adapter Hero Photo
Twin10G Thunderbolt Adapter
Learn More
  • 10Gb
  • 1Gb
  • 2x RJ45
  • Intel
Twin10G SFP28 Thunderbolt Adapter Hero Photo
Twin10G SFP28 Thunderbolt Adapter
Learn More
  • 10Gb
  • 2x SFP28 SR transceivers included
  • Mellanox
Twin25 Thunderbolt Adapter Hero Photo
Twin25 Thunderbolt Adapter
Learn More
  • 25Gb
  • 10Gb
  • 2x SFP28 SR transceivers included
  • Mellanox
For Computers or Thunderbolt Expansion Systems with PCIe Slots
Solo2.5G PCIe Card Hero Photo
Solo2.5G PCIe Card
Learn More
  • 2.5/5Gb
  • 1Gb
  • RJ45
  • Realtek
Solo10G PCIe Card Hero Photo
Solo10G PCIe Card
Learn More
  • 10Gb
  • 2.5/5Gb
  • 1Gb
  • RJ45
  • Marvell
Solo10G SFP+ PCIe Card Hero Photo
Solo10G SFP+ PCIe Card
Learn More
  • 10Gb
  • SFP+ socket including SFP+ SR transceiver
  • Marvell
Twin10G 10GBASE-T PCIe Card Hero Photo
Twin10G 10GBASE-T PCIe Card
Learn More
  • 10Gb
  • 1Gb
  • 2x RJ45
  • Intel
Twin10G SFP28 PCIe Card Hero Photo
Twin10G SFP28 PCIe Card
Learn More
  • 10Gb
  • 2x SFP28 SR transceivers included
  • Mellanox
Twin25G PCIe Card Photo
Twin25G PCIe Card
Learn More
  • 25Gb
  • 10Gb
  • 2x SFP28 SR transceivers included
  • Mellanox
McFiver PCIe Card Hero Photo
McFiver PCIe Card
Learn More
  • 10Gb
  • 2.5/5Gb
  • 1Gb
  • RJ45
  • 2x USB-C 3.2 Gen 2
  • 2x M.2 SSD sockets
  • Marvell
See Tech Specs for footnotes.
Product specifications and information subject to change without notice. Computers and accessories that may be featured in photos are not included with the product.

Twin10G SFP+ Thunderbolt Adapter