Home Keyboard HP ProBook 4420s keyboard Replacement Keyboard for HP ProBook 4420s Find other parts for yourHP ProBook 4420s HP ProBook 4420s Laptop AC Adapter 39.99AUDProBook 4420s Keyboard 25.99AUDProBook 4420s LCD Screen 99.99AUDProBook 4420s DVD Burner 39.99AUD Code:AU ProBook 4420s Keyboard Special Price: $25.99AUD Brand new product with 1 year warranty!