Newegg has 16GB CORSAIR Vengeance 16GB 260-Pin DDR4 SO-DIMM DDR4 2666 (PC4 21300) Laptop Memory Model CMSX16GX4M1A2666C18 on sale for $77.99.
Apply coupon code EMCTATE22 for 10% off.
Shipping is free.
Buying two of these will get you 32GB of RAM for $140.38
https://www.newegg.com/Product/Pr…gnorebbr=1