Neo Forza Plug-n-Play 16GB DDR4 2666 (PC4 21300) 260-Pin SODIMM Laptop Memory NMSO416F82-2666EA10 at Amazon.com
Mavark New SK Hynix HMAA2GS6CJR8N-XN 16GB DDR4 3200 PC4-3200AA-SA2-12 for XPS 9700 9500 X1 Carbon Extreme Gen 3 Alienware 51M R2 Asus Laptop (16GB DDR4 PC4-3200AA) Plus Best Notebooks Pen at Amazon.com