AMD Ryzen 2nd Generation/ Ryzen 1st Generation Processors :
1 x M.2 Socket 3, , with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)
1 x M.2 Socket 3, , with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x 4 mode)
AMD Ryzen with Radeon Vega Graphics Processor :
1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)