Framework's 10G Ethernet module exposes USB-C's complexity

WisdPi's new 10G Ethernet Expansion Card for Framework computers promises faster speeds but faces significant limitations due to USB-C bandwidth constraints and the Realtek RTL8159 controller's requirements. Testing revealed the module rarely achieves its rated 10 Gbps speed across different Framework models, with performance capped between 7-9.4 Gbps depending on the laptop's USB specifications, while also running dangerously hot at near 70°C—potentially causing skin damage with prolonged contact. The author recommends most users stick with the cheaper 2.5 Gbps Ethernet card unless they specifically need faster speeds and won't use the module on their lap.