Summary: Grabbed this on Newegg sale for $139.00 - was too good of a deal to pass up. Upgrading from 4 GBs of RAM on an aging AMD Phenom II X4 955 BE build. Night and day performance increase in games and Windows 8/8.1 and Mac OS X Mavericks (virtual machine).
Pros: - Excellent aluminum heat spreaders
Cons: - Heat spreaders might be too tall for some people in crowded or small cases
Summary: These are working fine on a Asus Sabertooth Z97 Mark 1 motherboard. They are not on the board's compatibility list as they have "C11" at the end of their designation instead of "C9", which I'm lead to believe has something to do with the timing. My only complaint is that on both sticks, the decorative metal on the top is loose.
Summary: I used to use only 4 gigs about 2 years ago when I very first started building my own computers for gaming, then a year ago I went up to 8 gigs which worked amazingly well. Now I currently use 16 gigs because I love leaving 20 tabs open at once for my work stuff, and stuff that I want to look at later, and these modules let me do so. I currently have them at the stock settings at 1866 in both my intel and amd system, Both of the ram modules worked fantastic for both.
Summary: I received this memory kit in a very nice package. This 1866Mhz 1.5v memory was used in my newly built system. I used Pass Marks to benchmark it and also compare with my previous memory it replaced (1600Mhz 1.5v). I was thrilled when I saw the performance compared to memories even with higher clocking rate. With 9-10-9-27 CR2 it was rubbing shoulders with 2100MHZ range memories. Great satisfaction.