IPad Air 4th Generation
Which cable should I buy to connect my IPad to my TV which has a USB2 port?
iPad Air, iPadOS 15
Assuming that you wish to play video from your iPad on your TV, you’ll not be able to do so using a ordinary USB connection. If your TV supports AirPlay2, you can connect wirelessly. Otherwise, to use a cabled connection, you’ll need an Apple USB-C Digital AV Multiport Adapter and a certified HDMI cable.
Apple USB-C Digital AV Multiport Adapter:
https://store.apple.com/uk/xc/product/MUF82ZM/A
Other third-party USB-C to HDMI adapters and hubs are available, however, very few support HDCP (High Definition Content Protection) - without which you will not be able to display the majority of streamed video content.