HP EliteBook 840 G1 Laptop Core i5 1.7 GHz 8GB RAM 256GB SSD Win 10 Pro | eBay
Refurbished: HP Laptop EliteBook Intel Core i7 4th Gen 4600U (2.10GHz) 8GB Memory 500GB HDD Intel HD Graphics 4400 14.0" Windows 10 Pro 64-Bit (Multi-Language Support English / Spanish) 840 G1 - Newegg.com
Renewed HP EliteBook 840 G1 Notebook PC i5-4300U 8GB RAM 128GB SSD Windows 10 14" 1366x768 Webcam With 30 Days Return, 90 Days Exchange Warranty
Amazon.com: HP EliteBook 840 G1 14" Laptop, Intel Core i5, 8GB RAM, 240GB SSD, Webcam, Win10 Pro (Renewed) : Electronics
HP Elitebook 840 G2 - 4th Gen Core i5 @ 1.90/8GB RAM/240GB SSD/Windows – The Mighty PC
HP Elitebook 840 G1 RAM Replacement - iFixit Repair Guide