Secure and cost effective way to connect your Thunderbolt 3 Mac or Windows PC to a high-performance wired network. Delivers up to 10 times the performance of Gigabit Ethernet Adapter is pocketable and uses no fan, perfect for use in noise-sensitive environments 40Gbps Thunderbolt 3 InterfaceConnects to any Thunderbolt 3 computer port, or at the end of a Thunderbolt 3 device daisy chain Thunderbolt Certified for Mac & Windows; Configured through macOS Network control panel or Windows Device Manager 2-year warranty and free lifetime customer support since 1986