HP Elitebook 840 G3 19.5V 2.31A 4.5mm x 3.0mm 45W laptop...
Amazon.com: 65W Charger for HP Elitebook and ProBook Laptops - Compatible with Models 850-G3 840-G3 820-G3 735 745-G3 725-G3 755-G3 840-G4 820-G4 850-G4, 450 430 440 446 455 741727-001 Supply Cord : Electronics
Total Micro AC Adapter, HP EliteBook 820 G3, 840 G3, 850 G3 - 65W - 710412-001-TM - Laptop Chargers & Adapters - CDW.com
HP EliteBook 840 G1 G2 G3 G4 G5 UltraSlim 2013 Docking Station with 65W Adapter | eBay
19.5v 2.31a Laptop Dc Car Charger Power Adapter For Hp Elitebook 820 G3 820 G4 840 G3 840 G4 1040 G2 1040 G1 1040 G3 1030 G1 725 - Laptop Adapter - AliExpress
New Genuine OEM HP EliteBook 840-G4, 840-G3 45W AC Laptop Power Charger Adapter - Newegg.com
65W Ac Adapter Laptop Charger Compatible for HP EliteBook 840 G3 G4 G5 G6 850 G3 820 725 745 755 X360 Folio 1020 1030 1040 G1 G3 probook 640 650 G2 430 440 450 G3 Laptop Notebook PC Power Supply Cord - Newegg.com
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,
Amazon.com: 65W Blue tip AC Adapter for HP ELITEBOOK 840 G3 (V1H24UT, T6F46UT),HP 15-BS289WM, Compatible with P/N: 710412-001, PA-1650-20HL, TPN-LA16, L25298-001, 709985-002, 714657-001, 714159-001 : Electronics