Amazon.com: Cable for HP EliteBook 840 G5 (Cable by BoxWave) - DirectSync PD Cable (10ft) - USB-C to USB-C (100W), Long 10 Foot PD Braided Nylon Alloy Cable for HP EliteBook 840
Amazon.com: 65W Slim USB C AC Charger Fit for HP Spectre x360 HP Elitebook 840 x360 HP ProBook 430 HP Elite x2 HP Chromebook x360 HP Envy x360 Travel Fast Charging Laptop
HP USB-C G5 Essential Dock | HP® Official Site
Original HP EliteBook X360 1020 G2 840 G5 USB-C Laptop Charger 65W AC Adapter | eBay
Amazon.com: HP USB-C Dock G4 - Docking Station - HDMI, 2 x DP - for Chromebook 14 G5, Elitebook 830 G5, 840 G5 and More (Renewed) : Electronics
HP EliteBook 840 G5 20V 45W Laptop Power Adapter/Charger
Usb C To 4.5*3.0mm Plug Converter Usb Type C Laptop Charging Cable Cord For Hp Elitebook 820 G3 820 G4 840 G3 840 G4 1040 G2 - Pc Hardware Cables & Adapters - AliExpress
HP 65W USB-C AC Adapter for EliteBook x360 1040 G6 G7 G8 EliteBook 840 G5 G8 | eBay