MSI showcase world’s first motherboard with USB 3.1. It is capable of supporting up to 10Gbps interface speed.
The USB interface is powered by ASMedia ASM1142 controller and is capable of delivering up to 10Gbps SuperSpeed+ USB bandwidth.
It looks like USB 3.1 could be available on AMD boards too since the M.2 and SATA Express would most likely be an Intel Z97 series.