Getting 25 Gbps Thunderbolt Ethernet on My Mac Studio
Getting 25 Gbps Thunderbolt Ethernet on my Mac StudioJul 31, 2026I've been using the built-in 10 Gigabit Ethernet on my Mac Studio for a few years. It works fine: I can edit 4K video straight off my NAS over the network, and run backups at around 1 GB/sec.But... Christian Kohlschütter found a cheap 25G Thunderbolt adapter that uses a server-pulled OCP 2 NIC with a little Thunderbolt 3 adapter board.
- ▪Getting 25 Gbps Thunderbolt Ethernet on my Mac StudioJul 31, 2026I've been using the built-in 10 Gigabit Ethernet on my Mac Studio for a few years.
- ▪It works fine: I can edit 4K video straight off my NAS over the network, and run backups at around 1 GB/sec.But...
- ▪Christian Kohlschütter found a cheap 25G Thunderbolt adapter that uses a server-pulled OCP 2 NIC with a little Thunderbolt 3 adapter board.
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| Original publisher | Jeff Geerling |
| Canonical URL | https://www.jeffgeerling.com/blog/2026/getting-25g-ethernet-mac-thunderbolt/ |
| Publication time | Fri, 31 Jul 2026 16:15:31 +0000 |
| Retrieval time | 2026-07-31T17:38:31.609Z |
| Last seen | 2026-07-31T17:38:31.609Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | jjwte_uw5323 · 1 stories |
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| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
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Getting 25 Gbps Thunderbolt Ethernet on my Mac StudioJul 31, 2026I've been using the built-in 10 Gigabit Ethernet on my Mac Studio for a few years. It works fine: I can edit 4K video straight off my NAS over the network, and run backups at around 1 GB/sec.But... I want more. I upgraded my rack and my NAS to 25 GbE a couple years ago, and wanted to upgrade my main workstation, too.I looked up 25G networking options for the Mac, and they're all crazy expensive:Sonnet's Twin25G Adapter is $999Atto's ThunderLink is $1,099Raiden Digit's LightOne 25GbE Docking Station is $399 (which honestly, isn't bad)The problem is Macs all require Thunderbolt adapters; you can't just plug an inexpensive(ish) PCIe card into a Mac (RIP Mac Pro).I stopped looking until I saw this blog post.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Jeff Geerling.
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