Review on Thermaltake TOUGHRAM Black DDR4 4400MHz C19 16GB (8GB x 2) Memory Intel XMP 2.0 Ready with Real-Time Performance Monitoring Software R017D408GX2-4400C19A - Optimized Thermaltake TOUGHRAM Black DDR4 4400MHz C19 16GB (8GB x 2) Memory Intel XMP 2.0 with Performance Monitoring Software by Trevor French

The RAM is of high quality. HEAVY and strong. Looks good for non-RGB too. The problem I had was that I figured I could play around with the timings and voltages to get the RAM working even when it's not in the QVL for my Maximus XI Hero (wifi). I was able to work fine for about a month (imagine in the return window) then I started getting random BSODs at completely random intervals. Then out of nowhere XMP wouldn't start at all no matter what I configured. These flash drives are no better than almost all others that run at the standard 2133MHz BIOS frequency. There was a new version of the BIOS but they still don't work for me. I have no doubt these are solid sticks, I just don't know how to ride them so there's no need to completely rework them. I take the blame for trying to run them even if they are not on the QVL (Qualified Vendor List) for my mobo. Learn from my mistakes and don't try to execute them if they aren't in your QVL!