TechPowerUp posted a review on the Asus X399 ROG Zenith Extreme Unboxed Ahead of Launch
A quote from the article:
As is usually the case with hardware products these days, it is hard to keep confidential details out of the public eye. With NDAs themselves becoming less rigorous in terms of what is covered and what is not, perhaps it was appropriate that someone over on Chiphell shared some pictures of the upcoming Asus X399 Zenith Extreme motherboard which supports AMD's upcoming Ryzen Threadripper platform. Videocardz were on hand to archive the pictures for everyone in the meantime.Asus X399 ROG Zenith Extreme Unboxed Ahead of Launch @ TechPowerUp
Based on what we know so far, the Asus Zenith Extreme looks to be the only E-ATX form factor motherboard to be revealed in four days time (although MSI is conspicuously absent in that preview), and the pictures we have confirm this. An Asus rep also confirmed that the Zenith Extreme will share an identical power delivery to their X399 Rampage VI Extreme, meaning we finally have a like-for-like treated flagship motherboard on the red side after what seems like ages- especially combined with the announcement of the X370 ROG Crosshair VI Extreme as well.