
I have a prebuilt system from HP, this is the ONLY memory that runs at 2666MHz SPD. 99% of the memory is 2133MHz SPD and uses Intel XMP to speed up the memory. Since I don't have XMP in my bios, this was the ONLY memory that ran at full speed of 2666MHz. HUGE downside, the storage packaging is awful, wrapped in tin foil and plastic, mailed by post. Seriously about as good as I could make at home. There is no cardboard or plastic tray to prevent the modules from bending or breaking during transport. I'm amazed it survived and now I constantly worry if the memory in my car is really reliable. The seller should come and get some kink resistant bowls or ship them in a very small box just to prevent the chopsticks from bending/bending during shipping.

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