I didn't expect these to be B-Die when I ordered it, but upon receiving it I noticed they were v4.31, which is Samsung B-Die. I'm only running them at the XMP (3200 c16) for now, but it seems like 3466 c14 is likely in the future. The XMP is working perfectly on my B450-f and Ryzen 5 2600x. June 29th, 2019 I posted this offer on /r/bapcsalescanada and have so far received 18 messages from people who ordered it, 17 out of 18 received v4.31 (Samsung B-Die), and 1 person received v3.31 (Micron).
Why should you care about B-Die? Samsung is ending B-Die RAM production soon, so you may be unable to get it for this cheap ever again. B-Die is the the fastest RAM for Ryzen 1000 series [Zen] and 2000 series [Zen+] CPUs (at the time of writing, performance is unknown with Ryzen 3000 series [Zen 2] CPUs). Performance increases when tightened with Ryzen DRAM calculator timings can be upwards of 20% or more. This makes a big difference to competitive gamers at high refresh rates but more importantly it helps smooth out FPS drops or runt frames. What this translates into is a smoother gaming experience. Intel can also benefit from B-Die over other memory types (reportedly up to 5-7%), just not to the same degree as Ryzen.
No problem overclocking this RAM with my Ryzen 1700x and then with the ryzen 2700. Managed to get it to3600mhz without any issues on a crosshair VI hero. I haven't bothered to try for more. System is stable and couldn't be happier with the RAM.
I find this to be a great value kit when it comes to ram but I am slightly disappointed that it is only supported at 2666mhz on my motherboard but since I am updating my motherboard soon I can afford to shop around for a motherboard that will support this ram. I went from a Asus Prime X370-Pro to a Asus Prime X470-Pro and my ram from 2666mhz right up to 3200mhz with very little trouble even though this model of ram isn't on the Asus Prime X470-Pro QVL list.
I was expecting the clock speed to be around 2933, and to my surprise it clocked properly at 3200 on my AMD based board. Pros: Almost everything, Except one thing Cons: the price is about $40.00 CDN for a Ryzen build. It would be nice to not have to look for compatible Ram I am very satisfied with this purchase.
Got v5.32, which is C-die, decided to keep it since I need RAM right now as my old ones aren't working well anymore. Easily hits stable 3200 with DOCP right away. Then basing off that I'm easily hitting 3600 mhz stable with barely any change.