Kimtigo DDR4 16GB Laptop Dram 2666MHz (PC4-21300) CL19 (Compatible with 2400MHz or 2133MHz) 1.2V Notebook (SODIMM) RAM Non-ECC Unbuffered Single Rank 260 Pin PC Computer Memory Module Upgrade at Amazon.com
Crucial 16GB DDR4 SDRAM Memory Module - for Notebook - 16 GB - DDR4-2666/PC4-21300 DDR4 SDRAM - CL19-1.20 V - Non-ECC - Unbuffered - 260-pin - SoDIMM (CT16G4SFS8266) at Amazon.com
Kingston Branded Memory 16GB DDR4 3200MT/s Single Rank SODIMM KCP432SS8/16 Notebook Memory at Amazon.com
DDR4 RAM】 Gigastone Laptop RAM 16GB DDR4 16GB DDR4-2666MHz PC4-21300 CL19 1.2V 260 Pin Unbuffered Non ECC SODIMM for Notebook Laptop Memory Module (Laptop ONLY) at Amazon.com
Patriot Signature Line Series DDR4 16GB (1 x 16GB) 3200MHz SODIMM (1 Rank Single-Sided Module) 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