ADATA Premier AD4S2666316G19-R 16GB DDR4 2666MHz 260-pin SODIMM RAM – AD4S2666316G19-R

From the manufacturer

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ADATA DDR4 modules for notebooks realize new generation advantages in highly reliable and cost-effective products. DDR4 brings higher performance thanks to faster frequencies compared to DDR3, going up to 2666MHz.
All ADATA memory modules are produced and tested using a rigorous quality control process for rapid computing and stable operation.
They deliver faster data transfers than DDR3, coupled with lower energy consumption that reduces heat and extends battery life. Our DDR4 is also optimized to unlock the power of the newest Intel processors.
Warranty: Life time warranty, For Service Center please visit Adata Website> support>RMA service> Service center