MSI MAG B550M Mortar Wifi

MEMORY
4x DDR4 memory slots, support up to 128GB 1
Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC
Supports DDR4 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3600/ 3733/ 3866/ 4000/ 4133/ 4266/ 4400+ MHz by A-XMP OC MODE
1DPC 1R max speed 4400 MHZ
1DPC 2R max speed 3733 MHZ
2DPC 1R max speed 3866 MHZ
2DPC 2R max speed 3466 MHZ
Dual channel memory architecture
Supports non-ECC UDIMM memory
Supports ECC UDIMM memory (non-ECC mode)
Supports un-buffered memory
Please refer msi for more information on compatible memory.

EXPANSION SLOT
1x PCIe 3.0/ 4.0 x16 slot (PCI_E1) 1
1x PCIe 3.0 x16 slot (PCI_E4), supports x4 mode 2
2x PCIe 3.0 x1 slots
The supported specification depends on installed processor.PCI_E4 will be unavailable when an M.2 SSD is installed in the M2_2 slot.

MULTI-GPU
Supports 2-Way AMD CrossFire Technology

ONBOARD GRAPHICS
1x HDMI 2.1 port, supports a maximum resolution of 4096x2160 @60Hz 1 2
1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz 1
Maximum shared memory of 16 GB
Available for the processor with integrated graphics.Graphics specifications may vary depending on the CPU installed.

STORAGE
AMD B550 Chipset

6x SATA 6Gb/s ports
2x M.2 slots (Key M)
M2_1 slot (from AMD processor)
Supports PCIe 4.0/ 3.0 x4 1
Supports SATA 6Gb/s
Supports 2242/ 2260/ 2280 storage devices
M2_2 slot (from AMD B550 chipset)
Supports PCIe 3.0x4
Supports 2242/ 2260/ 2280 storage devices
The supported specification depends on installed processor.

RAID
AMD B550 Chipset

Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices
Supports RAID 0 and RAID 1 for M.2 NVMe storage devices