Quick overview from the supplier:
MSI PRO B660M-B DDR4, Socket 1700, Intel® B660 (12th Gen CPU), CPU graphics, VGA, HDMI, Dual 2xDDR4-4600, 1xPCIe X16 4.0, 4xSATA3, RAID, 1xM.2 4.0, 1xM.2 E-key for Wi-Fi, 1xPCIe X1, ALC897 HDA 7.1, 1x2.5GbE LAN, 4xUSB3.2, mATX