Cable Length : Approximate : 0.12 MeterConnect your MacBook Air or any other device to a wired network in just seconds with the Kanex USB Ethernet Adapter. Ultra-compact and lightweight, it attaches to the USB port of your MacBook Air and provides an instant Ethernet connection to your network. The adapter gets its power through the USB connection, so no power cord is necessary. Fully compatible with all prior versions of USB including USB 2.0.