It wasn't until a fellow reviewer at TweakTown asked me a few questions on whether or not some new DDR4 he had requested for testing would work, which I was made aware of the existence of what we are looking at today. Initially, the question asked was if 4600MHz RAM would work with an 8700K clocked to 5.2GHz. After much discussion in general terms, curiosity prevailed, and the question was asked as to which kit he was attempting this. Much to our surprise, he had gotten his hands-on some ADATA sticks that were not even in existence on the XPG product page.

So after an email or two, we got our hands-on a kit, so that we could see what was possible, as the only other set of DDR4 we have tested at this speed was sent to us by Corsair. Once the memory arrived at our door, we found that they are so new, that retail packaging was not included, just two sticks, well protected, inside of a cardboard box. With a bit of deductive reasoning, we concluded this ADATA XPG memory is from the Z1 series based on the red, uniquely shaped, heat spreader design. With this series, ADATA does describe things which will benefit the buyer, but what we find most important is their mention of the usage of more copper in the PCB for more stable transfer of data, but also the cooling effect that comes along with it. ADATA also mentions the use of top-quality ICs, and what we found on the PCBs proves they went for the best of the best.