Compatibility

Mac Compatibility

• Mac with Thunderbolt 5, Thunderbolt 4, Thunderbolt/USB4, or Thunderbolt 3 ports
• macOS 15+; compatible with macOS 27

Windows Compatibility

• Windows computer with Thunderbolt 5, Thunderbolt 4, or USB4 ports
• Windows 11 25H2+

Linux Compatibility

• Linux computer with Thunderbolt 5, Thunderbolt 4, or USB4 ports
• Supported Linux kernel, 6.6 or later

Hardware

Part Number

• TWIN25G-TB

Warranty

• 2-year

Form Factor

• Thunderbolt 25GbE adapter

External Connectors

• Two Thunderbolt ports
  (second port supports a Thunderbolt peripheral, USB device, or a display)
• Two SFP28 sockets with two 25GBASE-SR optical transceivers
• 12V power port

25GbE Controller

• Mellanox ConnectX

Network Support

• 25 Gbps, 10 Gbps

Teaming (Link Aggregation)

• Not Supported

Packets

• Maximum packet size: 9000 bytes (jumbo frames)

Data Rates Supported per Port

• 25 Gbps, 10 Gbps

Advanced Features

• Flow control support
• MSI (Message Signaled Interrupts)
• RSS (Receive-Side Scaling)
• 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
• TRO (TCP Receive Offload)

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)

Weight

• Thunderbolt Adapter and Power Adapter: 2.3 lbs. (1.04 kg)
• Complete Package: 4.1 lbs. (1.86 kg)

Package Contents

• Twin25G Thunderbolt Adapter
• Two 25GBASE-SR (short-range) SFP28 transceivers (installed)
• Universal power adapter
• Region-specific power cable
• 0.8- meter Thunderbolt cable
• ThunderLok-A connector lock
• Documentation

Support Links

Support Knowledge Base

Twin25G Support

Product Manual