MB AM4 B550-A PRO MSI 4xDDR4 4400+, HDMI, DP, PCI-Ex16 4.0, PCI-Ex4, 2x PCI-Ex1, 2xM.2, 6xSATA3, 7xUSB3.2, 8xUSB2.0

Model Name: MSI B550-A PRO
Specification
Chipset: AMD B550 Chipset
Memory:
4x DDR4 memory slots, support up to 128GB
Dual channel memory architecture
Supports non-ECC UDIMM memory
Supports ECC UDIMM memory (non-ECC mode)
Supports un-buffered memory
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 4800 MHz
1DPC 2R max speed 3866 MHz
2DPC 1R max speed 4000 MHz
2DPC 2R max speed 3600 MHz
Expansion Slot:
1x PCIe 4.0/3.0 x16 slot (PCI_E1)
1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed
2x PCIe 3.0 x1 slots
Multi-GPU:
1x HDMI™ 2.1 port, supports a maximum resolution of 4096×2160 @60Hz
Supports HDCP 1.4 & 2.3
1x DisplayPort, supports a maximum resolution of 4096×2160 @60Hz
Maximum shared memory of 16 GB
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
Supports SATA 6Gb/s
Supports 2242/2260/2280/22110 storage devices
M2_2 slot (from AMD B550 chipset)
Supports PCIe 3.0×4
Supports 2242/2260/2280 storage devices
RAID
Supports RAID 0, RAID 1, and RAID 10 for SATA storage devices
Supports RAID 0 and RAID 1 for M.2 NVMe storage devices
USB
AMD B550 Chipset:
3x USB 3.2 Gen 1 5Gbps ports (1 Type-C internal connector, and 2 ports are available through the internal USB 3.2 Gen 1 5Gbps connector)
8x USB 2.0 ports (4 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors)
AMD Processor:
2x USB 3.2 Gen 2 10Gbps ports (1 Type-C port and 1 Type-A port on the back panel)
2x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel
AUDIO
Realtek® ALC892/ALC897 Codec
7.1-Channel High Definition Audio
LAN
1x Realtek® 8111H Gigabit LAN controller
Internal Connectors
1x 24-pin ATX main power connector
1x 8-pin ATX 12V power connector
6x SATA 6Gb/s connectors
2x M.2 slots (M-Key)
1x USB 3.2 Gen 1 5Gbps Type-C port
1x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports)
2x USB 2.0 connectors (supports additional 4 USB 2.0 ports)
1x 4-pin CPU fan connector
1x 4-pin water-pump fan connector
6x 4-pin system fan connectors
1x Front panel audio connector
2x System panel connectors
1x Chassis Intrusion connector
1x 4-pin RGB LED connector
2x 3-pin RAINBOW LED connectors
1x TPM module connector
1x Clear CMOS jumper
Dimensions
ATX Form Factor
12 in. x 9.6 in. (30.5 cm x 24.4 cm)