Welcome Laptop AC Adapter HP ProBook 4540s adapter Replacement for HP ProBook 4540s Laptop AC Adapter Find other parts of HP ProBook 4540s: HP ProBook 4540s Laptop AC Adapter 29.99GBPProBook 4540s laptop Keyboard 29.99GBPProBook 4540s DVD Burner 29.99GBP Item Code: ProBook 4540s Laptop AC Adapter Special Price: 29.99GBP Brand new with 1 year warranty!