CHNASAWE Laptop replacement Backlit Keyboard for Dell Alienware M14x R1 PK130G81A00 NSK-AKU01 02M4NW PK130G81A01 NSK-AKU1D 0DY6GW?US layout black color Attention: If your original/old keyboard does not have the backlit, this keyboard backlit will not work. Unless you confirm your laptop motherboard support the backlit.