MSI PRO B840M-B AMD AM5 mATX Motherboard
- Stock: In Stock
- Brand: MSI
- Model: PRO B840M-B
Specification
| Motherboard Basic Info | |
| BIOS | Flash BIOS Button |
| Motherboard Basic Information | |
| Supported CPU | Supports AMD Ryzen 9000/ 8000/ 7000 Series Desktop Processors Socket AM5 |
| Chipset | AMD B840 |
| Expansion Slots | |
| M.2 Socket | 2x M.2 M.2_1 Source (From CPU) supports up to PCIe 4.0 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_2 slot • Supports up to PCIe 4.0 x4 • Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors) |
| Expansion Slots | |
| PCI | 1x PCI-E x16 slot 1x PCI-E x1 slot PCI_E1 Gen PCIe 4.0 supports up to x16 (From CPU) PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset) PCI_E1 slot • Supports PCIe 4.0 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 processors) |
| Memory Specifications | |
| Type | DDR5 |
| Motherboard Memory Info | |
| Slots | 2x UDIMM |
| Supported Memory | Memory Support DDR5 8000 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s Ryzen™ 9000 Series Processors max. overclocking frequency: • 1DPC 1R Max speed up to 8000+ MT/s • 1DPC 2R Max speed up to 7200+ 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 |
| Maximum Memory | 128GB |
| Motherboard Graphics Info | |
| Graphics | 1x HDMI Support HDMITM 2.1, maximum resolution of 4K 60Hz 1x VGA Support VGA, maximum resolution of 2048x1536 50Hz, 2048x1280 60Hz, 1920x1200 60Hz |
| Connector & Ports (MB) | |
| HDMI | 1x HDMI |
| Internal I/O Ports | 1x Power Connector(ATX_PWR) 1x Power Connector(CPU_PWR) 1x CPU 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 5Gbps Type C ports |
| Supported Storage | 2x M.2 M.2_1 Source (From CPU) supports up to PCIe 4.0 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_2 slot • Supports up to PCIe 4.0 x4 • Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors) |
| Others | |
| Special Features | 4x EZ Debug LED 1x EZ Memory Detection LED |
| Warranty Information | |
| Manufacturing Warranty | 3 Years |
Description
MSI PRO B840M-B AMD AM5 mATX Motherboard
The MSI PRO B840M-B AMD AM5 mATX Motherboard is designed for users who want a dependable, future-ready platform for modern AMD systems. Built on the AMD B840 chipset, this motherboard supports the latest AMD Ryzen™ processors for the AM5 socket, making it ideal for business PCs, home offices, and everyday productivity-focused builds.
As part of MSI’s trusted PRO Series, the B840M-B emphasizes long-term stability, efficiency, and ease of use. It features a robust power delivery design and high-quality components to ensure smooth and reliable operation during daily workloads. Support for DDR5 memory delivers faster speeds, improved bandwidth, and enhanced system responsiveness compared to previous generations.
The motherboard offers PCIe 4.0 support for graphics cards and NVMe SSDs, enabling fast data transfer and future expansion. An integrated M.2 slot ensures quick boot times and rapid application loading, while multiple SATA ports provide flexible storage options. Despite its compact micro-ATX form factor, it delivers essential connectivity and expansion for practical PC builds.
With user-friendly BIOS controls, MSI performance optimizations such as Core Boost and Memory Boost, and a clean professional design, the MSI PRO B840M-B is an excellent choice for users seeking a stable, efficient, and value-driven AM5 motherboard.
Questions
Have question about this product? Get specific details about this product from expert.No questions have been asked about this product.