Jeff Geerling 4/24/2026

New 10 GbE USB adapters are cooler, smaller, cheaper

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This article reviews the new RTL8159-based 10 GbE USB 3.2 adapters, highlighting their smaller size, lower heat, and lower cost compared to traditional Thunderbolt 10 GbE adapters. The author tests a $80 WisdPi adapter on four computers (Framework 13, MacBook Neo, M4 MacBook Air, and a desktop PC), finding that full 10 Gbps speed is only achieved on a USB 3.2 Gen 2x2 20 Gbps port. Other machines reached 6-7 Gbps. The article also covers driver installation differences between Windows and Mac, USB naming confusion, and practical recommendations for users needing high-speed networking.

New 10 GbE USB adapters are cooler, smaller, cheaper

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