Specification B450M MORTAR | MSI Global - The Leading Brand

msi slotB key slot for ‘B’Key card (also known as Socket 2) (SATA) M key slot in ‘M’Key card (also known as Socket 3) (PCIe x 4) B+M Key cassettes are available for both cassette slots. Check HDD and SSD support specifications.MSI motherboards let you manage speeds and temperatures for all your system and CPU fans in BIOS and software with a simplified graphical interface. You can also set up to 4 temperature