Usb 3 0 ethernet adaptor cable with asx ax88179 controller since usb 3 0 does not limit the speed attainable in gigabit ethernet it is possible to take full advantage of gigabit ethernet allows you to transfer large files over a network by accessing real gigabit speeds that usb 2 0 adaptors can not provide input connector usb 3 0 type a male output connector rj45