The tb2usb3ge thunderbolt to gigabit ethernet usb 30 adapter lets you expand your macbook or laptop connectivity through a single compact adapter with both gigabit ethernet and usb 30 delivering reliable performance connection possibilities and rugged portability experience fast effective and reliable performance from your essential peripherals leveraging the 10gbps bandwidth of your thunderbolt port for this dual purpose adapter gives you reliable 1gbps ethernet and 5gbps usb 30 connectivity w