HP 8GB DDR4 2133MHz Memory

8 GB, 2.133 MHz, 1.2v, DDR4 dual in-line memory module Compatibility: HP EliteBook 820 G3, 840 G3, 850 G3 Notebook PCs HP ProBook 11, G2 Notebook PCs HP ProBook 430 G4, 440 G3+G4, 450 G3, 470 G3, 640 G2, 650 G2 Notebook PCs HP ZBook 15 G3, 15u G3,17 G3 Mobile Workstations HP ZBook Studio G3 Mobile Workstations Compatibility: Please provide the service tag number of your notebook before purchasing in order to check compatibility.