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Comma.ai Launches A PCIe Gen4 x4 To USB4 Dock With Open-Source Firmware

Comma.ai has launched a PCIe Gen4 x4 to USB4 dock with open-source firmware, allowing for larger driving models for their advanced driver-assistance systems.

By Michael Larabel·Aug 13·phoronix.com·2 min read

Intelligence analysis by Llama

Comma.ai Launches A PCIe Gen4 x4 To USB4 Dock With Open-Source Firmware
Image: phoronix.com

Comma.ai has launched a new PCIe Gen4 x4 to USB4 dock with open-source firmware, which can be used for larger driving models and is also compatible with Tinygrad usage.

Why it matters

This development matters to the Open Source community as it allows for the expansion of driving models and is a step towards more advanced driver-assistance systems.

Comma.ai has made a special computer box that can help cars drive better. It's like a big computer that can help the car see and understand the road better. This box is special because it can be used with a lot of different computers and can help make the car drive safer and more smoothly.

Analysis

Comma.ai's New PCIe Gen4 x4 to USB4 Dock With Open-Source Firmware

Comma.ai has recently launched a new PCIe Gen4 x4 to USB4 dock with open-source firmware. This development is significant as it allows for the expansion of driving models for their advanced driver-assistance systems. The primary focus of Comma.ai launching this dock is to enable the use of larger driving models, which can be expanded out to 100 Watts and utilize the likes of a Radeon RX 9060. This comes as Comma.ai launches a new 1B parameter driver model with the soon-to-launch OpenPilot 0.11.2.

The Chestnut dock, as it is called, can be connected to a computer for use similar to other USB4 docks. It's also compatible with Tinygrad usage. The Tiny Chestnut eGPU Dock on its own is retailing for $249 USD, while The Chestnut with the Radeon RX 9060 included is currently $799 USD. Those wanting to learn more can do so via Comma.ai.

Open-Source Firmware and GitHub

The firmware for the Chestnut dock is published on GitHub and is a C-based firmware for the ASM2464PD USB4/Thunderbolt to NVMe bridge controller. This open-source firmware is a significant step towards more advanced driver-assistance systems and allows for the community to contribute to the development of the firmware.

Compatibility and Usage

The Chestnut dock is not limited to just working with Comma.ai driving systems. It can also be attached to your typical PC and used for other purposes. This makes it a versatile device that can be used in a variety of scenarios.

Conclusion

In conclusion, Comma.ai's new PCIe Gen4 x4 to USB4 dock with open-source firmware is a significant development in the field of advanced driver-assistance systems. It allows for the expansion of driving models and is a step towards more advanced driver-assistance systems. The open-source firmware and GitHub publication make it a community-driven project that can be contributed to and developed further.

Key points

  • Comma.ai has launched a new PCIe Gen4 x4 to USB4 dock with open-source firmware.
  • The dock is designed to allow for the expansion of driving models and is compatible with Tinygrad usage.
  • The firmware for the dock is published on GitHub and is a C-based firmware for the ASM2464PD USB4/Thunderbolt to NVMe bridge controller.
  • The dock can be connected to a computer for use similar to other USB4 docks.
  • The Tiny Chestnut eGPU Dock on its own is retailing for $249 USD, while The Chestnut with the Radeon RX 9060 included is currently $799 USD.
The Upside

If this development plays out positively, it could lead to more advanced driver-assistance systems being developed and implemented in vehicles. This could result in safer roads and reduced accidents.

The Downside

However, there are also potential downsides to this development. For example, the increased complexity of the system could lead to more bugs and errors, which could compromise the safety of the vehicle.

Originally reported at

phoronix.com

Discernion covers the story. Read the full piece at the source.

Tagsai-agentsopen-sourcehardwarecomputingautomotive

Author

Michael Larabel

Intelligence analysis by

Llama

Published

Aug 13, 2026

Source

phoronix.com

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Topics

ai-agentsopen-sourcehardwarecomputingautomotive

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