KitGuru tried the Asus USB 3.1 Hands-on Preview
A quote from the article:
The widespread introduction of USB 3.1-capable components is already under way. That roll-out is currently centred around motherboards providing support for the 10Gbps ports, but further devices will make use of the higher speed connector in coming months. We get an early hands-on look at one of Asus? upcoming USB 3.1-equipped motherboards ? the Z97-A/USB 3.1.Asus USB 3.1 Hands-on Preview @ KitGuru