M2_1 slot (from AMD Processor)
Supports PCIe 4.0 x4 (3rd Gen AMD Ryzen)
Supports PCIe 3.0 x4 (2nd Gen AMD Ryzen/ Ryzen 4000 G-Series, Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon Graphics)
Supports 2242/ 2260/ 2280/ 22110 storage devices
M2_2 slot (from AMD X570 Chipset)
Supports PCIe 3.0 x4 (2nd Gen AMD Ryzen/ Ryzen 4000 G-Series,Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzenwith Radeon Graphics) and SATA 6Gb/s supports 2242/ 2260/ 2280 storage devices