Used with a powerline adapter, it enables an ethernet connection from router to computer.
Powerline adapters are available from outletpc for between $50 and $100. They come with ethernet cables included. A powerline adapter connects your router to all the wall plugs in your house. And provides an ethernet connection at the wall-plug end. Use this ethernet-to-usb-3 adapter to connect the powerline adapter's ethernet connection to your computer's usb3 port. Ethernet is faster and stabler than wi-fi by a country mile. Ethernet is the gold standard for internet connections - used by all big institutions to connect pc's to their lan's.I have an early-2014 macair laptop. It has a fast firewire port on the right side and not-quite-as-fast usb3 ports on both sides. My laz-e-boy recliner is configured such that the ethernet cable comes from the left so i got this ethernet-to-usb3 cable adapter instead of the ethernet-to-firewire version. Ethernet is faster than any of the ports on your computer so use the fastest port you've got.Installation of this ethernet-to-usb adapter is plug and play. No reading or thinking required.