Specification B450M MORTAR | MSI Global -

msi slotWindows 10 Home (MSI recommends Windows 11 Pro for business.) Windows 10 Pro FREE Upgrade to Windows 11* Windows 10 Home (MSI recommendsMost M.2 PCIe SSD slots (including combo M.2 slots) support the NVMe protocol but none of the M.2 SATA-only SSD slots support it. NVMe is optional. You can use an