This high quality Total Micro 65W USB-C AC adapter meets or exceeds OEM specs and is for the HP EliteBook 745 G5, 745 G6, 755 G5, 830 G6, 840 G6, 850 G6, 1040 G4, ProBook 440 G6, 450 G5, 450 G6, 470 G5, 640 G5, 650 G5. Lifetime limited warranty