ASUS ROG STRIX X399-E Gaming Motherboard Review The ROG STRIX X399-E Gaming promises to be a lower cost options for AMD’s Threadripper processors. This is a "less is more" approach to motherboard design than the exquisite and expensive ROG Zenith Extreme. The ROG brand has always been a premium brand. With these lower cost STRIX boards, does this remain true? Read on to find out. If you like our content, please support us on Patreon for as little as $1 a month.