#Realtek's $10 tiny
#10GbE network adapter is coming to motherboards later this year
The Realtek
#RTL8127 is a tiny — measuring 9mm x 9mm — network controller with a PCIe 4.0 x2 interface that supports a wide range of Ethernet speeds, including 2.5 Gbps, 5 Gbps, and 10 Gbps. The RTL8127 controller consumes about 1.95W and supports modern standby modes, which is critical for laptops.
https://www.tomshardware.com/networking/realteks-usd10-tiny-10gbe-network-adapter-is-coming-to-motherboards-later-this-year