StarTech-com-USB-3-0-To-Dual-Gigabit-LAN-Adaptor-With-USB-Port-StarTech-com-USB32000SPT-p-The-StarTech-com-USB32000SPT-USB-3-0-to-Dual-Port-Gigabit-Ethernet-Adaptor-lets-you-add-2-x-Gigabit-Ethernet-ports-to-your-laptop-or-Ultrabook-computer-through-a-single-USB-3-0-port-It-features-an-integrated-USB-3-0-pass-through-port-that-keeps-your-USB-port-available-for-use-with-external-storage-or-other-peripherals-Each-RJ45-port-supports-10-100-1000-Mbps-Ethernet-and-is-fully-compatible-with-IEEE