we dont know yet and if anyone one did they would be under nda and they wouldnt tell you . but yes the z170 ocf was good with memory. i bought the memory kit from nick at the top of this page and i was able to reach over 4400mhz on that kit as a maximum speed. i had and msi gaming m7 before i got the ocf and it wouldnt even run them at xmp speed. always topped out on 3733 i think it was?Since ASRock is solid and better with its quality compared with ASUS and MSI, it might be interesting in getting Z270 OC Formula. When is it going to be released?