Apple USB Ethernet Adapter

The Apple USB Ethernet Adapter is an adapter dongle from Apple that allows Macs with a USB-A port to accept a 100BASE-T Ethernet connection.

History
It was introduced in 2008 for the MacBook Air, which lacked a built-in Ethernet port. Later on, as MacBooks and MacBook Pros lost their Ethernet ports to slim the machine down, this dongle was also required for them, too. Mobile devices can be use it in conjunction with the Lightning to USB Camera Adapter or the Lightning to USB 3 Camera Adapter.