I ordered a z370 motherboard from …
I ordered a z370 motherboard from SuperBiiz the same day I ordered other components from New Egg and B&H and received it before the others. If I recall, I used SuperBiiz because the board I wanted was out of stock elsewhere. I had not heard of SuperBiiz (sorry, SuperBiix) so in a sense I was taking a chance. Happily, there were no problems or glitches in this transaction at all. So five stars from me based on one purchase--but I am now very comfortable buying from them.
