June 25, 2026
Too hot to trot, too weird to plug
Framework's 10G Ethernet module exposes USB-C's complexity
A blazing-hot laptop add-on promised superfast internet, and commenters are not buying it
TLDR: Framework’s 10G Ethernet module can deliver superfast wired speeds, but only in ideal conditions, and it runs hot enough that using it on your lap is a bad idea. Commenters were far more obsessed with the awkward stick-out design, with many asking why anyone wouldn’t just use a dongle instead.
Framework’s new plug-in Ethernet card was supposed to be the dream upgrade for people who want very fast wired internet on a modular laptop. Instead, the internet got a fresh episode of “why is USB-C so weird?” The review found that this $99 add-on can hit near-10 gigabit speeds only in the right setup, with the right driver, on the right machine, and sometimes only on Windows. On other setups, it falls well short. Then came the real plot twist: it also got alarmingly toasty, with surface temperatures nearing 70°C. Yes, the laptop accessory for your lap may be best used... not on your lap.
That’s where the comments really lit up. One camp basically asked, why does this exist as a side module at all if it sticks out, has to be removed before going into a bag, and acts like a dongle anyway? Several readers mocked the design as awkward and “stupid,” with one saying it “sticks out like a sore thumb” and another comparing it to annoying security keys people hate carrying around. The other camp was less shocked by the heat and more like, well, duh—pointing out that high-speed network gear usually needs chunky cooling, so trying to cram it into a tiny laptop card was asking for drama. The funniest vibe from the thread: this thing is being treated less like a sleek upgrade and more like a tiny side-mounted space heater with identity issues. If nothing else, the community seems united on one point: for most people, the cheaper slower card—or just a plain old dongle—sounds way less chaotic.
Key Points
- •The WisdPi 10G Ethernet Expansion Card for Framework systems relies on USB-C, and its performance is heavily affected by the host port’s actual USB bandwidth mode.
- •The Realtek RTL8159 controller needs USB 3.2 Gen 2x2 (20 Gbps) to approach full 10 Gbps Ethernet throughput; USB4 and USB 3.2 Gen 2x1 connections can limit it to well under 8 Gbps.
- •On a Framework 13 with AMD Ryzen AI 5 340, the author observed lower-than-expected throughput on both Windows 11 and Linux despite documentation suggesting Gen 2x2 support on some ports.
- •On a Framework 12, Linux reported a 20 Gbps USB link but only delivered about 7 Gbps in iperf3; installing the Realtek driver on Windows 11 increased throughput to about 9.4+ Gbps.
- •The module reached nearly 70°C on its bottom plastic surface during sustained testing, and the author recommends avoiding lap use and suggests most users consider Framework’s cheaper 2.5 Gbps Ethernet card instead.