Total supports 2 x M.2 slot(s) and 4 x SATA 6Gb/s portsAMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors :1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280 (PCIE 4.0 x4 and SATA modes) storage devices supportAMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors :1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices supportAMD B550 Chipset :1 x M.2_2 socket 3, with M Key, Type 2242/2260/2280/22110(PCIE 3.0 x4 and SATA modes) storage devices support4 x SATA 6Gb/s port(s),