Sonnet USB 3.0 + Gigabit Ethernet to Thunderbolt Adapter Provides one 5.0 GB/s USB 3.0 port for connecting to storage, hubs, and other USB 3.0 devices Easy connectivity to USB 3.0 devices and Gigabit Ethernet wired networking Leverages Thunderbolt technology to provide an inexpensive connectivity alternative for Mac and Windows PC users Compatible with any Mac computer with a Thunderbolt port