The at sign (@) on the German keyboard for the iPad Pro 12.9" with the Belkin Pro Keyboard is usually entered using the key combination "Alt" (Option) + "L". You hold down the Alt key and then press the L key to create the @ sign. This combination corresponds to the standard assignment on German keyboards for iPad hardware keyboards. If this does not work, you should check in the iPad settings under "General" > "Keyboard" > "Hardware keyboard" whether the keyboard is set to German and whether the special key assignment is correct, as incorrect settings (e.g. "Option" as a globe key) can affect the input.

The Pro Keyboard (DE, iPad Pro 12.9) from Belkin is not explicitly listed as compatible with the iPad Pro 12.9-inch of the 2nd generation. However, it is explicitly compatible with the iPad Pro 12.9-inch models of the 3rd, 4th, 5th and 6th generation as well as with the iPad Air 13" M2 and M3. As the 2nd generation iPad Pro 12.9 inch is not mentioned in the official compatibility list, a perfect fit and full functionality is not guaranteed. The keyboard is specially designed for the newer generations from the 3rd generation onwards, which indicates differences in design and dimensions. For the iPad Pro 12.9 inch of the 2nd generation, it is recommended to choose a keyboard that is explicitly labelled for this model to ensure an optimal fit and functionality.

According to the supplier, the keyboard is not compatible with such new devices.