ASUS' ROG STRIX X399-E Gaming motherboard for Threadripper offers a less expensive alternative to some of their higher end boards; however the $350 price tag is still a little steep.  You still get a wide variety of internal and external connections, but there is no DIMM.2 adapter for an additional M.2 drive and [H]ard|OCP found the PCB to be flimsy enough that they popped out a standoff on one of the installed heatsinks due to that flexibility.  The layout of the board was lauded as was the overall performance, so if you are looking to build a Threadripper system for a little less then this is a board worth investigating. 

"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? "

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