HP EliteBook 840 G3 Business Laptop, Intel Core i5-6th Generation CPU, 16GB RAM, 512GB SSD, 14 inch Display, Windows 10 Pro
How to Upgrade HP Elitebook 840 G3 Memory - YouTube
HP EliteBook 840 G3 disassembly & assembly to change RAM, HDD, Wifi or 3G / 4G module - YouTube
Refurbished: HP Elitebook 840 G3 14" Full HD 1920x1080 Touchscreen Laptop PC, Intel Core i7-6600U 2.6GHz, 8GB DDR4 RAM, 512GB SSD, Windows 10 Pro x64 Grade A - Newegg.com