Framework's 10G Ethernet module exposes USB-C's complexity(jeffgeerling.com)
318 points by Alupis 1 day ago | 179 comments
tl;dr: WisdPi's new $99 10G Ethernet Expansion Card for Framework laptops rarely hits its rated speed because the Realtek RTL8159 chip requires USB 3.2 Gen 2x2 (20 Gbps), which many Framework models—including those whose docs claim support—fail to deliver in practice, with Linux performance worse than Windows. The module also runs hot (~70°C on the plastic surface), making lap use uncomfortable. For most users, the cheaper 2.5 Gbps Expansion Card is the better pick.
HN Discussion:
  • ~Article mischaracterizes the issue as USB-C complexity when it's really USB 3.2 Gen 2x2 standard's fault
  • 20Gbps USB isn't actually needed since 10G USB really delivers 10Gbps, contradicting the article's premise
  • 10G copper is inherently power-hungry and hot, so heat issues are expected regardless of form factor
  • Putting 10G Ethernet in a laptop expansion card is impractical compared to dongles or docking stations
  • Even at reduced speeds, the adapter is still a worthwhile upgrade over slower alternatives