Pay Attention: If some keys will don't work after installed ,this is not because keyboard is broken ,the most posiibility is ribbon cable don't connect well with your laptop ,pls try to reconnect more times .Many customers solve this problem after did this. We tested every keyboard before shipping ,please be assured the purchase. thanks *Backlit : No *Color : Black *Layout : US keyboard layout *Status : Brand new Compatible Models: for Lenovo Thinkpad T440 T440P T440s T431 E431 L440 T450s L440 L450 L460 L470 T431S T450 e440 e431S T460 Series（Without Red Pointer）