Original HP Slim 230W Replacement AC Adapter for HP EliteBook 8730W, 8740W, 8760w, 8770w Series, HP EliteBook 8440P, 8540P, 8540W, 8560W, HP Compaq dc7800, dc7900 Desktop PC series, HP xw6600 Workstation, 100% Compatible with P/N: 693706-001, 677766-003, HSTNN-DA12S, H1D36AA#ABA.