Apple USB Ethernet Adapter

Amazon.co.uk Price: £28.97 (as of 23/01/2022 10:24 PST- Details)

Easily connect your MacBook Air computer to an Ethernet network with the Apple USB Ethernet Adapter
Small and light, it connects to the USB 2.0 port of your MacBook Air
Provides an RJ-45 connector that supports 10/100BASE-T performance