Dell 8 GB (1 x 8 GB) - DDR4 SDRAM - 2666 MHz DDR4-2666/PC4-21300 - 1.20 V - ECC - Registered - 288-pin - DIMM at Amazon.com
Amazon.com: Dell Latitude 5420 Rugged FHD Laptop PC, Intel Core i5-8350U, 8 GB DDR4 Ram, 256GB SSD, WiFi | Bluetooth, HDMI, Type C Port, USB 3.0 Type A, Web Camera, Windows 10