Bests & Worsts Reviews from Amazon

The memory works, and so part of me thinks it should get a higher star rating. It does not, however, work at the advertized 2666 Mhz transfer speed unless you are able to enable the XMP profile. My laptop's bios does not give any option for selecting the XMP profile, so the laptop will only run this memory at its default speed, which apparently is only 2400 MHz. I didn't run hard-core cpu benchmark tests prior to this upgrade, but I did run several graphics benchmarks with the original 16gb 2666 MHz cas 19 ram that my Razer Blade 15 came with, and then re-ran those tests with the 32gb cas 16 Ballistix ram. The scores were either about the same or up to around 5% higher. So I doubled the RAM capacity of the laptop, and the cas 16 vs. cas 19 difference negated the drop from 2666 MHz to 2400 MHz, but if this RAM actually ran at 2666 MHz the difference in speed would have been greater. The bottom line is this: this RAM is advertized as 2666 MHz RAM. There's even an option that you can select on the product page when you order this RAM, where you have a 2400 MHz version and a 2666 MHz version. I selected the 2666 MHz version. The packaging that this RAM came in says 2666 MHz on it. Installed in the machine, however, it's only running at 2400 MHz, and looking at the SPD settings in CPU-Z shows why: the default speed settings for this RAM are 2400 MHz cas 16. The 2666 MHz cas 16 setting is in the XMP profile. Since my laptop's bios gives no option for selecting the XMP profile, this RAM cannot be used at that speed. So this gets a 1-star review. They have advertised this RAM in a very misleading manner. Nothing at all in any of their marketing copy indicates that this RAM is only 2666 MHz RAM if you use the XMP profile. Since I received the RAM kit and upgraded the machine literally the night before going out of town for a long while I would totally return this and buy something else in order to get the speed I actually paid for. As it is, I'm stuck with this. The RAM works, and thanks to the lower CAS rating it's not even slower than the original RAM, but I paid for a speed increase that I didn't get, and I'm very much pissed off that their marketing bullcrap lies and misrepresents the product this way. That's shameful, and they will not be rewarded with a good review for doing shady business like that.