Sonnet Technologies SOLO10G-TB3 Solo 10G - Thunderbolt 3 to 10GbE Adapter This LAN adapter provides 10Gbps connectivity via Thunderbolt 3. Operation confirmed. Selling because I purchased a different product. Sonnet Technologies Solo10 Thunderbolt 3 to 10GbE Adapter USB 【Key Features】 ・Adds 10GBASE-T 10GbE connectivity: Adds an RJ45 10 Gigabit Ethernet port to a computer with a Thunderbolt 3 port. ・Excellent cost-effectiveness: This low-cost adapter connects to a 10GbE infrastructure using inexpensive CAT 6 or CAT 6A cables up to 55m or 100m, respectively. ・Equipped with a 40Gbps Thunderbolt 3 interface: Connects to the Thunderbolt 3 port of a computer or to the end of a Thunderbolt 3 daisy chain. ・Supports NBASE-T: Supports speeds of 5 Gb/s or 2.5 Gb/s up to 100m with inexpensive CAT 5e (or higher) cables when using a multi-gigabit switch or router. ・Other features: Supports Audio Video Bridging (IEEE 802.1Qav, AVB) and Energy-Efficient Ethernet (IEEE 802.3az) functions. ・Easy setup: Configured in the macOS Network control panel or the Windows Device Manager. ・Small size and excellent quietness: The adapter is pocket-sized and fanless, making it ideal for use in environments where quietness is required. ・Bus-powered, energy-saving: The Solo10G does not require a power adapter because it receives power via the Thunderbolt connection. ・Rugged construction: Durable aluminum enclosure. ・Thunderbolt certified for Mac & Windows