$ 149.99

The Single-adapter Solution for Connecting to Pro Tools | Carbon The Avid® Pro Tools | Carbon audio interface for music production has been described as a creative game changer; its innovative use of eight onboard HDX processors and a custom FPGA enable you to track and monitor with near-zero latency when using AAX DSP plug-ins. Because Carbon connects to your Mac® over Ethernet using a proprietary version of AVB (Audio Video Bridging, aka IEEE 802.1), you’ll have to use an AVB capable Thunderbolt™ Gigabit Ethernet adapter if your computer doesn’t have onboard Ethernet. The Avid Qualified Sonnet Thunderbolt AVB adapter is your single-adapter solution for connecting your supported Mac with Thunderbolt ports to the Carbon interface.

AVB-Compliant Ethernet Adapter

Connect to Other Devices On a Network

Beyond its support for the Pro Tools | Carbon interface, the Sonnet Thunderbolt AVB Adapter enables you to add your Mac as an endpoint in an AVB network and connect to other devices such as audio interfaces, mixers, plug-in processors, personal monitor stations, stage boxes, speakers, speaker processors, and others. Audio Video Bridging support makes the adapter perfect for use in pro audio and video applications where synchronization of data streams is critical. What is the Benefit of an AVB Network? An AVB network is extremely reliable since it is designed to reserve a portion of the available Ethernet network bandwidth for its own data. Packets of AVB data are sent regularly in allocated slots within the reserved bandwidth, ensuring AVB packets maintain time synchronization.

Thunderbolt Interface for Low Latency

Featuring a 40Gbps Thunderbolt™ interface, the Sonnet Thunderbolt AVB Adapter supports the low-latency, fully synchronized streaming of audio and video over Ethernet required for Avid Pro Tools | Carbon and AVB support.

Bus-powered Operation

Operating off its Thunderbolt connection, Sonnet’s Thunderbolt AVB Adapter is bus-powered, so there’s no need to plug in a power supply or power cable.

Pocketable. Powerful. Gigabit Ethernet to Go

The Sonnet Thunderbolt AVB Adapter measures just 1.5 inches wide by 3.9 inches deep by 0.8 inches tall, small enough to tuck out of sight or fit easily into a pocket in your backpack or equipment bag. Enabling truly portable use, the Sonnet adapter is powered by your computer’s Thunderbolt port, connected through the included Thunderbolt cable.

Simple Setup

Drivers and Configuration App Built Into macOS

The basic drivers that support the Sonnet Thunderbolt Adapter are included in macOS®. Basic configuration takes place in Network control panel, while configuration for use in AVB applications is handled in the Audio MIDI Setup application and control software.


Mac Compatibility

  • Mac® (M1, M1 Pro, M1 Max, and M1 Ultra)
  • Mac (Intel®) with Thunderbolt 3 ports
  • macOS® 10.12.6+
  • macOS Monterey compatible

Pro Tools Carbon Compatibility


Part Number

  • AVB-TB


  • 2-year

Form Factor

  • Thunderbolt Ethernet adapter

External Connectors

  • One Thunderbolt port
  • One RJ45 port

GbE Controller

  • Broadcom BCM57762

Bus Interface

  • 40Gbps Thunderbolt

Network Support

  • 1000BASE-T, 100BASE-TX


  • Maximum packet size: 9000 bytes

Data Rates Supported

  • 1Gb/s, 100Mb/s

Advanced Features

  • Audio Video Bridging (AVB) protocols over Ethernet compliant with IEEE 802.AS, 1588-2008, P802.1Qat, and P802.1Qav
  • Energy-Efficient Ethernet (IEEE 802.3az)
  • Virtual LAN (VLAN) support - IEEE 802.1q VLAN
  • Wake-on-LAN (WOL) support

Stateless Oflloads

  • TCP, UDP and IPv4 checksum offloading
  • TSO (TCP Segmentation Offload, AKA Large Send Offload)
  • LRO (Large Receive Offload)
  • RSS (Receiver Side Scaling)

AVDECC Compliant

  • Yes

Operating Temperature

  • 0ºC to 35ºC (32ºF to 95ºF)

Dimensions (WxDxH)

  • 5 x 3.9 x 0.8 in. (38.1 x 98.4 x 20.6 mm)


  • Adapter: 0.20 lbs (0.09 kg)
  • Complete Package: 0.40 lbs (0.18 kg)


  • RoHS 3 (Directive 2015/863)
  • IEC62368-1 and IEC62368-2 Safety

Package Contents

  • Sonnet Thunderbolt AVB Adapter
  • 0.5-meter Thunderbolt cable
  • ThunderLok 3 Thunderbolt connector retainer clip(1)
  • Documentation


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