MSI PRO B850M-G

MSI PRO B850M-G

The MSI PRO B850M-G is a Micro-ATX motherboard built around the AMD B850 chipset and AM5 socket. MSI positions it for professional and productivity-focused builds, combining DDR5 memory support, PCIe 5.0 expansion, dual M.2 storage, and 5G LAN connectivity in a compact board layout.

Key Features

• Supports AMD Ryzen 9000, 8000, and 7000 Series desktop processors
• AM5 socket with AMD B850 chipset
• 2 DDR5 UDIMM slots with up to 128GB memory capacity
• Primary PCIe 5.0 x16 slot plus secondary PCIe 4.0 x16 slot
• 2 M.2 slots and 4 SATA 6G ports for storage
• Realtek 8126VB 5G LAN
• Rear HDMI 2.1 and DisplayPort 1.4 outputs
• Flash BIOS Button and Clear CMOS Button on the rear panel

Specifications

• Form factor: mATX
• Chipset: AMD B850
• Socket: AM5
• CPU support: AMD Ryzen 9000 / 8000 / 7000 Series desktop processors
• Memory: 2 x DDR5 UDIMM, up to 128GB
• Memory support: DDR5 8200 – 5600 (OC) / 5600 – 4800 (JEDEC)
• Graphics outputs: 1 x HDMI 2.1, 1 x DisplayPort 1.4, each up to 4K 60Hz with supported processors
• Expansion slots: 2 x PCI-E x16
• Storage: 2 x M.2, 4 x SATA 6G
• Networking: Realtek 8126VB 5G LAN
• Audio: Realtek ALC897 7.1-channel high definition audio
• Rear USB: 3 x USB 5Gbps Type-A, 1 x USB 5Gbps Type-C, 2 x USB 2.0
• Operating system support: Windows 11 64-bit
• Board dimensions: 226mm x 243.84mm

Product details were derived from MSI’s official PRO B850M-G overview and specification pages. Images for this upload use exact-product fallback retailer assets because direct manufacturer image retrieval was unavailable from the source page during this run.