Amazon.com: Replacement HP 65W Blue tip AC Adapter for HP Elitebook 830 G5 / 840 G3 G4 G5 / 850 G3 G4 G5 / ProBook 450 G3 G5, Compatible with P/N: 710412-001,
AC Adapter Charger for HP EliteBook 840 G4, 840 G6 Healthcare Edition; Elitebook 725 G3, 745 G3, 840 G3, 850 G3. By Galaxy Bang USA - Walmart.com