NikKTech published a review on the ZADAK SPARK RGB 16GB DDR4 4266MHz CL19 Dual-Channel Kit
A quote from the article:
The SPARK RGB 16GB DDR4 4266MHz CL19 Dual-Channel kit by ZADAK is not just one of the fastest Samsung IC based DDR4 kits out there currently, thanks to its anodized aluminum heatspreaders and 5 ARGB zones it looks very unique as well.ZADAK SPARK RGB 16GB DDR4 4266MHz CL19 Dual-Channel Kit Review