ASUS 90NB0GF2-R31IT1 is a laptop top-case spare part with a keyboard module in the Italian layout. It is identified for the X411UA-1B, making it a model-specific part for keyboard and upper-case repair or replacement.
The listing describes the item as both a top case and keyboard module. The Italian layout is the key distinguishing detail of this version, so it is suited to restoring that layout on the specified laptop model. The part reference is 90NB0GF2-R31IT1.