
- Brand: Sonnet
- Model: TWIN10GM-SFP-TB
- MPN: TWIN10GM-SFP-TB
Sonnet Twin10G SFP28 TWIN10GM-SFP-TB – Thunderbolt Dual-Port 10Gb Ethernet Adapter with Dual SFP28 Transceivers for Professional Fiber Networking
- Thunderbolt Dual-Port 10 Gigabit Ethernet Adapter
- 2 x SFP28 Network Ports
- 2 x Short-Range SFP28 Optical Transceivers Included
- 2 x Thunderbolt Ports
- 10Gb/s Network Speed per Port
- Mellanox ConnectX Ethernet Controller
- Supports SMB Multichannel and Teaming on Compatible Operating Systems
- Combined Network Performance up to 20Gb/s with Supported SMB Multichannel Workflows
- Supports Jumbo Frames
- Universal 60W Power Adapter Included
- Compatible with Supported Mac, Windows and Linux Systems
- Ideal for Fiber Networks, NAS, Shared Storage, Video Production and High-Bandwidth Workflows
- 2 Years Warranty
- Availability: 4 Weeks after Receipt of Purchase Order
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Sonnet Twin10G SFP28 Thunderbolt Adapter
Add high-speed dual-port 10GbE optical networking to compatible Mac, Windows, and Linux computers through Thunderbolt. With two included short-range SFP28 optical transceivers, a Mellanox ConnectX controller, SMB Multichannel/team support, and rugged aluminum construction, the Twin10G SFP28 is built for pro workstations, shared storage, media workflows, and high-speed network environments.

High-Speed Optical 10GbE for Professional Workstations
The Sonnet Twin10G SFP28 Thunderbolt Adapter is designed for users who need a reliable external path to 10 Gigabit Ethernet without installing an internal PCIe card. It is a pre-configured Thunderbolt networking solution that combines Sonnet's Twin10G SFP28 PCIe card with an Echo Express SEL Thunderbolt expansion system, giving laptops, mini PCs, workstations, and production systems access to dual 10GbE optical connectivity.
Connect two 10GbE optical network links for shared storage, NAS, server access, media editing, backup, and high-throughput workstation workflows.
The package includes two installed short-range SFP28 optical transceivers for multi-mode fiber connectivity up to 300 meters.
One Thunderbolt port connects to the host computer while the second supports a Thunderbolt peripheral, USB device, or display.
Built for Throughput, Reliability, and Lower CPU Load
The Twin10G SFP28 uses a Mellanox ConnectX controller to deliver efficient network performance with minimal host CPU overhead. It supports jumbo frames, checksum offloading, flow control, receive-side scaling, multicast filtering, and advanced network features that help keep large file transfers smooth.
Compact, Rugged, and Nearly Noiseless
The adapter is small enough for most desktop setups and uses a rugged aluminum enclosure for protection. Its temperature-controlled variable-speed fan helps maintain cooling while keeping noise low enough for studios, editing rooms, and office workstations.
The included Thunderbolt cable and ThunderLok-A connector lock help prevent accidental cable disconnection during critical transfers.
Ideal for High-Speed Storage and Production Networks
Use the Twin10G SFP28 adapter to connect Thunderbolt-equipped computers to 10GbE switches, high-performance NAS systems, shared media storage, servers, render systems, and enterprise fiber networks.
High-bandwidth connectivity for video editing, asset movement, and shared project storage.
Dual optical 10GbE links for workstation-to-server or switch-based networking.
Fast backup, sync, ingest, and file transfer for demanding professional environments.
Connection and Compatibility Highlights
Mac Compatible
Supports macOS 14+ Macs with Thunderbolt 5, Thunderbolt 4, Thunderbolt/USB4, or Thunderbolt 3 ports. Sonnet also lists macOS Tahoe compatibility.
Windows Compatible
Supports Windows 11 computers with Thunderbolt 5, Thunderbolt 4, or USB4 ports. USB4 support requires a compatible USB4 host router.
Linux Compatible
Supports Linux kernel 6.6, 6.12, 6.18, or newer on computers with Thunderbolt 5, Thunderbolt 4, or USB4 ports.
Intel Macs with Thunderbolt 3 ports require macOS 15+ according to Sonnet's technical notes.
Technical Specifications
| Product Name | Sonnet Twin10G SFP28 Thunderbolt Adapter |
|---|---|
| Part Number | TWIN10GM-SFP-TB |
| Product Type | Thunderbolt 10GbE adapter |
| Network Support | 10Gb/s per port |
| External Connectors | 2 x Thunderbolt ports, 2 x SFP28 sockets with two short-range SFP28 optical transceivers, 12V power port |
| Controller | Mellanox ConnectX |
| SMB Multichannel / Teaming | Supported; compatible setups can combine bandwidth up to 20Gb/s |
| Jumbo Frames | Maximum packet size up to 9000 bytes |
| Advanced Features | Flow control, MSI, RSS, multicast filtering, 64-bit address support; Wake-on-LAN not supported |
| Stateless Offloads | TCP, UDP, and IPv4 checksum offloading; TRO |
| Power Adapter | Universal 60W, 100-240V, 50-60 Hz, NRTL Certified |
| Operating Temperature | 0°C to 35°C |
| Dimensions | 4 x 8.25 x 2.75 in. / 10.3 x 21 x 7.3 cm |
| Weight | Thunderbolt adapter and power adapter: 2.3 lbs. / 1.04 kg; complete package: 4.1 lbs. / 1.86 kg |
| Compliance | RoHS 3, IEC62368-1 and IEC62368-2 Safety |
| Warranty | 2-year limited warranty |
Package Contents
| Adapter | Twin10G SFP28 Thunderbolt Adapter |
|---|---|
| Transceivers | Two short-range SFP28 optical transceivers installed |
| Power | Universal power adapter and region-specific power cable |
| Thunderbolt Cable | 0.8-meter Thunderbolt cable |
| Cable Security | ThunderLok-A connector lock |
| Documentation | Included documentation |
Computer, switch, storage system, fiber cables, and other devices shown in product images may be for illustration only unless separately listed in package contents.
Buy Sonnet Twin10G SFP28 Thunderbolt Adapter from NationalPC
Choose the Sonnet Twin10G SFP28 Thunderbolt Adapter TWIN10GM-SFP-TB for dual-port 10GbE optical networking, Thunderbolt workstation connectivity, included short-range SFP28 transceivers, and professional high-speed storage or server workflows.









