Enjoy maximum wired connectivity with Moshi's USB to Gigabit Ethernet Adapter. Using a SuperSpeed USB 3.0 port on your MacBook means your Thunderbolt port remains open for convenient docking to an external display. Encased in aluminium to minimise electromagnetic interference, the adapter is also 100% plug-n-play and requires no installation discs or external power. Best of all, it includes a USB pass-through port so your MacBook retains full USB 3.0 connectivity.