This is the Left-side Function Keypad, also called the Hot Keys, for the Alienware 15 R4 and 17 R5 with the optional RGB-Per Key keyboard. This keypad is located just left of the Keyboard assembly.
Compatible Dell Laptops/Notebooks:
Alienware 15 R4 with RGB-Per Key keyboard
Alienware 17 R5 with RGB-Per Key keyboard
DPN: YG5CX
NOTE: This keypad is compatible with 15 R4 / 17 R5 systems equipped with the optional RGB-Per Key keyboard. This keyboard will not pair with the standard backlit keyboard.