Anandtech published The GIGABYTE Z170X-Ultra Gaming & Z170X-Designare Motherboard
A quote from the article:
In this review we are having a look at GIGABYTEs Z170X-Ultra Gaming and Z170X-Designare, motherboards that were designed with a way of bringing U.2 support to the market. The two motherboards share many similarities, yet also several important differences, which we will examine and compare to other products currently available in the market.The GIGABYTE Z170X-Ultra Gaming & Z170X-Designare Motherboard Review @ Anandtech