MSI PRO B840M‑B is a micro‑ATX board built for AMD AM5 Ryzen CPUs, featuring dual DDR5 slots with memory boost up to 8000 MT/s, one PCIe 4.0 x16 lane for graphics, two M.2 Gen4 drives, HDMI and VGA outputs, SATA III ports, USB 3.0 connectivity, and a 2.5G Ethernet port for fast networking.