Adamanta 16GB (1x16GB) Laptop RAM Upgrade Compatible for Dell Alienware, G-Series, Inspiron, Latitude, Optiplex, Precision, Vostro & XPS DDR4 2666Mhz PC4-21300 SODIMM 2Rx8 CL19 1.2v P/N: SNPCRXJ6C/16G