| Basic Information | ||
| Supported CPU | Supports AMD Ryzen 9000/ 8000/ 7000 Series Desktop Processors Socket AM5 |
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| Chipset | AMD B850 | |
| BIOS | Flash BIOS Button | |
| Form Factor | mATX | |
| Audio | Realtek ALC897 7.1-Channel High Definition Audio |
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| Expansion Slots | ||
| PCI | 2x PCI-E x16 slot PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU) PCI_E2 Gen PCIe 4.0 supports up to x4 (From Chipset) PCI_E1 slot Supports PCIe 5.0 x16 (For Ryzen 9000/ 7000 Series processors) Supports PCIe 4.0 x8 (For Ryzen 8700/ 8600/ 8400 Series processors) Supports PCIe 4.0 x4 (For Ryzen 8500/ 8300 Series processor) |
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| M.2 Socket | 2x M.2 | |
| Memory | ||
| Maximum Memory | 2x UDIMM | |
| Slots | 128GB | |
| Supported Memory | DDR5 | |
| Type | Memory Support DDR5 8200 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s Ryzen 9000 Series Processors max. overclocking frequency: 1DPC 1R Max speed up to 8200+ MT/s 1DPC 2R Max speed up to 8000+ MT/s Supports AMD POR Speed and JEDEC Speed Supports Memory Overclocking and AMD EXPOTM Supports Dual-Channel mode Supports Non-ECC, Un-buffered memory Supports CUDIMM, Clock Driver bypass mode only |
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| Graphics | ||
| Graphics | 1x HDMI Support HDMITM 2.1, maximum resolution of 4K 60Hz 1x DisplayPort Support DisplayPort 1.4, maximum resolution of 4K 60Hz Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed. |
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| Connector & Ports | ||
| HDMI | 1x HDMI 2.1 | |
| USB (s) | 2x USB 2.0 (Rear) 4x USB 2.0 (Front) 3x USB 5Gbps Type A (Rear) 1x USB 5Gbps Type C (Rear) 2x USB 5Gbps Type A (Front) 1x USB 10Gbps Type C (Front) |
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| LAN Port (s) | Realtek 8126VB 5G LAN | |
| Supported Storage | 2x M.2 M.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280/2260 devices M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280/2260 devices 4x SATA 6G M2_1 slot Supports up to PCIe 5.0 x4 (For Ryzen 9000/ 7000 Series processors) Supports up to PCIe 4.0 x4 (For Ryzen 8000 Series processors) M2_2 slot Supports up to PCIe 4.0 x4 Supports up to PCIe 4.0 x2 (For Ryzen 8500/ 8300 Series processors) |
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| 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 |
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| Audio | 1x Front Audio (JAUD) | |
| Internal I/O Ports | 1x Power Connector(ATX_PWR) 1x Power Connector(CPU_PWR) 1x CPU Fan 1x Combo Fan (Pump_Sys Fan) 2x System Fan 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 1x Com Port (JCOM) 3x Addressable V2 RGB LED connector (JARGB_V2) 1x RGB LED connector(JRGB) 1x TPM pin header(Support TPM 2.0) 4x USB 2.0 ports 2x USB 5Gbps Type A ports 1x USB 10Gbps Type C ports |
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| Display Port (s) | 1x DisplayPort 1.4 | |
| TPM (Trusted Platform Module ) | 1x TPM pin header(Support TPM 2.0) | |
| Others | ||
| Special Features | 4x EZ Debug LED 1x EZ Memory Detection LED |
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| Warranty Information | ||
| Warranty | 3 Year | |
The MSI PRO B850M-G is a compact, highly reliable micro-ATX motherboard engineered for the AMD AM5 socket. Fully optimized to support AMD Ryzen 9000, 8000, and 7000 series desktop processors, this motherboard serves as an excellent, budget-friendly foundation for users looking to build a high-efficiency workstation or a capable mainstream gaming PC with next-generation architecture.
Designed to maintain stable performance under daily productivity and heavy multitasking workloads, the PRO B850M-G features a robust digital VRM power delivery system. To combat heat and maintain thermal efficiency, MSI has equipped the board with a high-quality, heavy-plated heatsink array that covers critical components. Combined with hybrid fan headers and the intelligent Frozr AI Cooling software, the system automatically adjusts fan speeds based on real-time hardware temperatures to keep operation cool and quiet.
The motherboard embraces the high-bandwidth capabilities of DDR5 memory, featuring dual-channel slots optimized with MSI’s DDR5 Memory Boost technology to ensure pristine signal integrity and stable data transmission. Storage capacity is future-proofed by a blazing-fast Lightning Gen 4 M.2 slot, allowing users to install the latest high-speed NVMe solid-state drives for near-instant boot times, rapid file transfers, and reduced application loading sequences.
For wired networking, the board includes a fast Gigabit LAN port that ensures steady, low-latency internet connectivity for online tasks and streaming. The comprehensive rear I/O array is packed with versatile connectivity options, including multiple USB 3.2 Gen 1 ports, alongside HDMI and DisplayPort outputs for dual-monitor setups. With long-term reliability enhanced by a server-grade PCB and reinforced PCIe Steel Armor to protect against heavy graphics cards, the PRO B850M-G offers an accessible, durable entry point into the AM5 ecosystem.
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