I've been following WisdPi's development of various 5 Gbps and 10 Gbps Ethernet adapters for the past couple years. They use newer Realtek Ethernet chips, which sometimes have performance quirks—most frequently encountered under Linux. In today's video, I tested the new WisdPi 10G Ethernet Expansion Card for Framework computers. It fits in any available Framework Expansion slot—even on the Framework Desktop. But Expansion Cards use USB-C for their connection to the mainboard—and therein lies the rub... The main problem is USB-C's bandwidth complexity—especially when paired with the Realtek RTL8159 Ethernet controller, which requires USB 3.2 Gen 2x2 (20 Gbps) to get the full rated 10 Gbps speeds. On many Framework laptops, you'll wind up getting considerably less than 10 Gbps (9.4 Gbps real-world max): The above image shows the average bandwidth I get on Windows 11 on a Framework 13 with AMD's Ryzen AI 5 340.…