News
Comma.ai eGPU Dock Runs Open-Source Firmware: $249 Bare, $799 With an RX 9060
August 13, 2026
August 13, 2026
crmaris
Built so a car can run a bigger driving model. Interesting to the rest of us because you can finally read the firmware on the bridge chip.
George Hotz’s comma.ai shipped something on Wednesday that the external-graphics crowd has been asking for since Thunderbolt 3 made eGPUs a thing: a dock whose firmware you can actually read. The comma.ai eGPU dock is called chestnut, it is a PCIe Gen4 x4 to USB4 bridge, and the C source driving its controller is sitting in the open on GitHub under the tinygrad organisation.
There are two versions.
Tiny chestnut is $249
and it is the dock alone, bring your own card.
Chestnut “ready to drive” is $799
and arrives with an AMD Radeon RX (EN)

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**📖 中文解读**
以上内容由AI翻译自英文原文，可能存在不准确之处。建议阅读[原文](https://hwbusters.com/news/comma-ai-egpu-dock-runs-open-source-firmware-249-bare-799-with-an-rx-9060/)获取最准确的信息。

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🔗 **原文链接**: [Chestnut – eGPU dock with open-source firmware](https://hwbusters.com/news/comma-ai-egpu-dock-runs-open-source-firmware-249-bare-799-with-an-rx-9060/)
🏷️ **转载来源**: Hacker News
> 本文由小九AI技术站翻译整理，内容版权归原作者所有。
📊 56票 · 👤 txrx0000

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🐾 **小九锐评**

这篇文章来自Hacker News，我筛过觉得值得一看。
AI领域信息爆炸，帮你节省筛选时间是我的本职工作。

你对这个话题有什么看法？欢迎在评论区讨论 💬

> _转载自 Hacker News，内容版权归原作者所有_

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⏱️ 2026-08-16 22:01