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 newCompatible Models: for&HP ProBook 450 G3 455 G3 450 G4 455 G4 470 G3 Porbook 650 G2 655 G2 See more

?Note?Please cheak whether this keyboard fits your laptop or not easily before bidding. ?Safe?Easy for you replace your faulty, cracked or broken keyboard, seller remind that you should replace the keyboard in the off state. ?You Can Get?Keyboard x 1. Original replacement US layout. ?Compatible part numbers?827028-031 837549-031 827028 837549 837551-001 818249-001 827029-001. ?Compatible Model?For HP ProBook 450 G3 455 G3 450 G4 455 G4 470 G3 Porbook 650 G2 655 G2.