Twin10G SFP+ Amazingly Fast 10GbE Networking with Dual SFP+ Sockets with Your Choice of SFP+ Transceivers (Sold Separately)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

for computers with Thunderbolt 4 or Thunderbolt 3 ports

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 using the Thunderbolt™ 4 or Thunderbolt 3 port on your Mac®, Windows®, or Linux® computer? You’ll need an adapter. Sonnet’s Twin10G™ SFP+ adapter is the powerfully simple solution for adding blazing-fast dual-port 10GbE optical network connectivity to your computer.

Twin10G SFP+ with 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).

10x the Performance of Gigabit Ethernet Logo

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

Adds High-Performance 10GbE SFP+ Connectivity 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.

Connection Flexibility Icon

SFP+ Transceivers Included

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

Easy Setup Icon

Easy Setup

Configure the adapter’s settings using operating system tools.

40Gbps Thunderbolt Device Icon

40Gbps Thunderbolt Device

Offers 2800 MB/s of PCIe bandwidth. Learn more about Thunderbolt 3 performance benefits over Thunderbolt 4.

Two Thunderbolt Ports Icon

Two Thunderbolt Ports

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

Compact, Rugged, Nearly Noiseless 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.

Supports Transparent Failover Icon

Supports Transparent Failover

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

Supports Link Aggregation (Teaming) Icon

Supports Link Aggregation (Teaming)

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

VMWare Ready Logo

VMWare Ready

Optimized to meet VMWare’s highest level of endorsement.

Mac Compatible Icon

Mac Compatible, Including Apple M series Macs

Supports Apple M series Macs, and Macs with Thunderbolt 4, Thunderbolt/USB4,  Thunderbolt 3, and Thunderbolt 2 (with adapter and Thunderbolt 2 cable, sold separately) ports.

Windows Compatible Icon

Windows Compatible

Supports Windows computers with Thunderbolt 4 and Thunderbolt 3 ports.

Linux Compatible Icon

Linux Compatible

Supports Linux computers with Thunderbolt 4 and Thunderbolt 3 ports.

Free Lifetime Tech Support
Why Thunderbolt 3 Instead of Thunderbolt 4?
Sonnet’s line of Thunderbolt adapters rely on Thunderbolt 3 technology for maximum performance.
VIdeo Play Icon

Watch video to learn more

Twin10G SFP+ 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).

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!

Intelligent Operation Icon
All the Right Connections

40Gbps Thunderbolt Cable and ThunderLok 3 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.
40Gbps Thunderbolt Cable with ThunderLok 3Supports Full 40Gbps Thunderbolt Bandwidth

40Gbps Thunderbolt

Fastest External Interface Available

The Twin10G SFP+ features a 40Gbps Thunderbolt interface that delivers up to 2800 MB/s of PCIe bandwidth, enabling maximum 10Gb Ethernet performance.

40Gbps Thunderbolt Ports Icons
Dual 40Gbps Thunderbolt Ports
One port is reserved for the connection to your Thunderbolt 4 or Thunderbolt 3 computer; the second port enables expansion of up to five additional Thunderbolt peripheral devices in a daisy chain.
10Gbps USB 3.1 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.
5K Display Icon
Supports Connecting One 5K 60Hz Display
Maximize the utilization of one computer Thunderbolt port.
Thunderbolt 4 Computers

Compatible with Thunderbolt 4 Computers and Apple M series Macs

Twin10G SFP+ is fully compatible with Thunderbolt 4 computers, including Apple M series Macs. Sonnet Thunderbolt Ethernet adapters are 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. Learn more about the performance benefits of Thunderbolt 3 over Thunderbolt 4.
Apple M Series CPU

Compatible with Apple M series Macs

see Tech Specs for details

Older Macs with Thunderbolt 2 Ports

Backward Compatible with Older Macs

No Thunderbolt 4 or Thunderbolt 3 port? No problem — the Twin10G SFP+ is also compatible with Macs with Thunderbolt 2 or Thunderbolt ports when used with the bi-directional Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter and a Thunderbolt cable (both sold separately).

Why Choose Sonnet for Ethernet Networking?

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

  • 10GbE and 25GbE network experts
  • One provider for all your networking needs
  • Adapters for Thunderbolt computers
  • Single- and dual-port adapters
  • SFP+ (optical) adapters
  • Networking PCIe cards

Learn More

Why Choose Sonnet for Ethernet Networking?

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

  • macOS, Windows, and Linux support
  • 10GbE and 25GbE 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 4 or Thunderbolt 3 ports
Solo10G Photo
Solo10G
Learn More
  • 10Gb
  • 2.5/5Gb
  • 1Gb
  • RJ45
  • Marvell
  • macOS 10.13+
  • Windows 10, 11
  • Windows Server 2019, 2022
  • Linux Kernel 5.0+
  • ESXi 7+
Solo10G SFP+ Photo
Solo10G SFP+
Learn More
  • 10Gb
  • SFP+ socket with SFP+ SR transceiver
  • Marvell
    • macOS 10.13+
    • Windows 10, 11
    • Linux Kernel 5.0+
    • ESXi 7+
    Twin10G Photo
    Twin10G
    Learn More
    • 10Gb
    • 1Gb
    • 2x RJ45
    • Intel
      • macOS 10.13+
      • Windows 10, 11
      • Linux Kernel 5.0+
      • ESXi 7+
      Twin10G SFP+ Photo
      Twin10G SFP+
      Learn More
      • 10Gb
      • 2x SFP+ transceivers included
      • Intel
      • macOS 10.13+
      • Windows 10, 11
      • Linux Kernel 5.0+
      • ESXi 7+
      Twin25G Photo
      Twin25G
      Learn More
      • 25Gb
      • 10Gb
      • 2x SFP28 transceivers included
      • Mellanox
        • macOS 12+
        • Windows 10, 11
        • Linux Kernel 5.0+
        For computers or Thunderbolt expansion systems with PCIe slots
        Solo10G PCIe Card Photo
        Solo10G PCIe Card
        Learn More
        • 10Gb
        • 2.5/5Gb
        • 1Gb
        • RJ45
        • Marvell
        • macOS 10.13+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        Solo10G SFP+ PCIe Card Photo
        Solo10G SFP+ PCIe Card
        Learn More
        • 10Gb
        • SFP+ socket including SFP+ SR transceiver
        • Marvell
        • macOS 10.13+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        McFiver PCIe Card 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
        • macOS 12+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        Twin10G 10GBASE-T PCIe Card Photo
        Twin10G 10GBASE-T PCIe Card
        (formerly known as Presto 10GBASE-T PCIe Card)
        Learn More
        • 10Gb
        • 1Gb
        • 2x RJ45
        • Intel
        • macOS 10.13+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        Twin10G SFP+ PCIe Card Photo
        Twin10G SFP+ PCIe Card
        (formerly known as Presto 10GbE PCIe Card)
        Learn More
        • 10Gb
        • 2x SFP+ transceivers included
        • Intel
        • macOS 10.13+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        Twin25G PCIe Card Photo
        Twin25G PCIe Card
        Learn More
        • 25Gb
        • 10Gb
        • 2x SFP28 transceivers included
        • Mellanox
        • macOS 12+
        • Windows 10, 11
        • Windows Server 2019, 2022
        • Linux Kernel 5.0+
        • ESXi 7+
        See Tech Specs for footnotes.
        Product specifications and information subject to change without notice. Computer hardware and accessories featured in photos that are not included with product are shown for illustration purposes; items sold separately.

        Twin10G SFP+