Blazing-fast 10GbE 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™ 3 or Thunderbolt 4 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 network connectivity to your computer.
Flexibility of SFP+ Transceiver Choices
Sonnet offers three SFP+ transceiver options (sold separately) — a short-range multi-mode fiber module (up to 300 meters), part number G10E-SFP-SR; 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).
More Bandwidth
Equipped with two SFP+ sockets, the Twin10G SFP+ adapter supports ten times the performance of Gigabit Ethernet and more bandwidth over shared networks.
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).
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!
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 ThunderboltFastest 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.
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 3.2 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.
Provides 15W of Power
For peripherals requiring extra power, 15 watts is provided to bus-powered devices.
Supports Connecting One 5K 60Hz Display
Maximize the utilization of one computer Thunderbolt port.
Compatible with Thunderbolt 4 Computers and Apple M1/M2 Series Macs
Twin10G SFP+ is fully compatible with Thunderbolt 4 computers, including Apple M1/M2 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.
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).
Sonnet Technologies Twin10G SFP+ Specification |
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Mac Compatibility |
Mac (M1/M2 series)
Mac (Intel®) with Thunderbolt 3 ports Mac (Intel) with a Thunderbolt 2 or Thunderbolt 1 port with an Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter plus a Thunderbolt 2 cable (both sold separately) macOS 10.12.6+ macOS Ventura compatible |
Windows Compatibility |
Windows computer with Thunderbolt 4 or Thunderbolt 3 ports
Windows 11 and 10 |
Linux Compatibility | Linux computer with Thunderbolt 4 or Thunderbolt 3 ports Linux Kernel 5.0+ |
Hardware |
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Form Factor |
Thunderbolt 10GbE adapter
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External Connectors |
Two Thunderbolt ports |
10GbE Controller | Intel 82599 |
Network Support | 10 Gigabit Ethernet |
Link Aggregation (Teaming) | Supported |
Packets | Maximum packet size: 9000 bytes (jumbo packets) |
Data Rate Supported per Port | 10Gb/s |
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 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 Temperatures | 0˚C to 35˚C (32˚F to 95˚F) |
Dimensions (WxDxH) | 4 x 8.25 x 2.75 in. (10.3 x 21 x 7.3 cm) |
Weight | 2.95 lbs. (1.34 kg) |
Compliance | RoHS 3 (Directive 2015/863) IEC62368-1 and IEC62368-2 Safety |
- Twin 10G SFP+ 10GbE Adapter
- Thunderbolt cable
- ThunderLok 3 Thunderbolt connector retainer clip
- Universal power adapter
- Power cord
- 2-years Limited Manufacturer's Warranty