The Realtek RTL8159 is a high-performance, low-power 10 Gigabit Ethernet (10GbE) controller designed for USB-based networking solutions. Unveiled in 2025, it targets the "affordable 10GbE" market, providing a significantly cheaper alternative to traditional Thunderbolt-based or enterprise-grade network adapters Host Interface: Designed for USB 3.2 Gen 2x2 (20Gbps)