All iPads have the Apple logo on the back in the middle and the model number in tiny print near the bottom. It is so tiny that you may need to magnify it to see what it says. You may have a magnifying glass or you can take a photo and zoom in.
Below is a closer look at what you'll find. Note that you can find a different model number in the Settings app, but Apple refers to the model number from back of the iPad and that is what we use also.
Once you have the model number, enter it here and we'll provide a list of compatible products.