Ethernet Connector for iPad Air

Your iPad Air4 has a USB-C port - to which you will need to connect either a third-party USB-C to Ethernet Adapter - or a USB-C hub that incorporates an Ethernet port.

Apple does not manufacture a dedicated USB-C Ethernet Adapter - presumably as these are relatively easy to obtain. Belkin (marketed by Apple) do offer suitable adapters, but there are many other more versatile USB-C hubs that incorporate additional USB ports (both Type-A and USB-C), HDMI, VGA, Ethernet, SD/microSD Card Readers etc.

Perhaps consider a USB-C hub from Anker, Hyperdrive and Satechi - although there are many others from which to choose. A Google Search for USB-C Hubs compatible with iPad will find a number of articles and recommendations.

A few examples…:

• https://us.anker.com/collections/hubs/products/a8365?variant=37438670667926
• https://satechi.net/products/usb-c-on-the-go-multiport-adapter?variant=33736080523352
• https://www.hypershop.com/collections/usb-c-hubs/products/hyperdrive-slim-usb-c-hub-for-macbook-chromebook-pc-usb-c-devices
• The Belkin USB-C to Gigabit Ethernet Adapter - Apple

You’re very welcome. The list of examples that I have provided represents just a few of the many hubs available - with each manufacturer having several hubs/adapters that may be more or less relevant for your needs.

USB-C hubs, supporting multiple interfaces, are generally a lot more useful (and cost effective) - allowing multiple simultaneous connections to peripheral devices and interfaces.

maybe

The Belkin USB-C to Gigabit Ethernet Adapter - Apple

if it was air 3 then

Belkin Ethernet + Power Adapter with Lightning Connector - Apple