MB MSI B550-A PRO AM4 4XDDR4-4400O.C.

CPU Support
Support for 3rd Gen AMD Ryzenth processors and future AMD Ryzen processors with BIOS update

CPU Socket
AMD Socket AM4

Chipset
AMD B550 Chipset

Graphics interface
1x PCIe 4.0 / 3.0 x16 slot
1x PCIe 3.0 x16 slot
Support 2-way AMD CrossFire Technology

Display interface
DisplayPort, HDMI – Requires Processor Graphics

Memory support
4 DIMMs, Dual Channel DDR4-4400 MHz (OC)

Expansion slots
2x PCI-E 3.0 x1 slots

Storage
1 x M.2 Gen4 x4
1 x M.2 Gen3 x4 slot
6x SATA 6Gb/s ports

Usb ports
2x USB 3.2 Gen 2 10Gbps (1 Type-A + 1 Type-C)
5x USB 3.2 Gen 1 5Gbps (4 Type-A + 1 Type-C)
8 x USB 2.0

Lan
Realtek RTL8111H Gigabit LAN

Audio
8-Channel (7.1) HD Audio with Audio Boost