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| Basic Information | ||
| Supported CPU | Supports AMD Ryzen 9000/8000/7000 Series Desktop Processors | |
| Chipset | AMD B850 | |
| Form Factor | Micro-ATX | |
| Memory | ||
| Number of Memory Slots | 2 | |
| Maximum Memory | 128GB | |
| Supported Memory | 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 | |
| Graphics | ||
| Graphics | 1x HDMI Support HDMITM 2.1, maximum resolution of 4K 60Hz 1x DisplayPort Support DisplayPort 1.4, maximum resolution of 4K 60Hz | |
| Expansion Slots | ||
| Expansion Slots | PCI 1x PCI-E x16 slot 1x PCI-E x1 slot PCI_E1 Gen PCIe 3.0 supports up to x1 (From Chipset) PCI_E2 Gen PCIe 4.0 supports up to x16 (From CPU) PCI_E2 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 processor) M.2 Socket 2x M.2 M.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280 devices M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280 devices 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) | |
| Storage | ||
| Supported Storage | 2x M.2 M.2_1 Source (From CPU) supports up to PCIe 5.0 x4 , supports 2280 devices M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 2280 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) | |
| Network | ||
| LAN | Realtek 8125 2.5G LAN | |
| Audio | ||
| Audio | Realtek ALC897 7.1-Channel High Definition Audio | |
| BIOS | ||
| BIOS | Flash BIOS Button | |
| Ports & Connectors | ||
| HDMI | 1x HDMI 2.1 | |
| USB Ports | 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) | |
| Display Port | 1x DisplayPort 1.4 | |
| Audio | 1x Front Audio (JAUD) | |
| RAID | Supports RAID 0 and RAID 1 for M.2 NVMe storage devices Supports RAID 0, RAID 1, and RAID 10 for SATA storage devices | |
| TPM (Trusted Platform Module ) | 1x TPM pin header(Support TPM 2.0) | |
| Internal I/O Ports | 1x Power Connector(ATX_PWR) 1x Power Connector(CPU_PWR) 1x CPU Fan 1x Combo Fan (Pump_Sys Fan) 3x System Fan 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 1x Tuning Controller connector(JDASH) 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 | |
| Warranty | ||
| Warranty | 3 Years Warranty | |
The MSI PRO B850M-B GEN4 is a Micro-ATX motherboard designed for AMD AM5 socket desktop systems, making it a strong choice for compact yet capable PC builds. With the AMD B850 chipset at its core, this board supports modern AMD Ryzen desktop processors from the 9000, 8000, and 7000 series—ideal for users who want a current-generation platform with room to grow. Its black body color helps it blend cleanly into most PC cases and builds, whether you’re assembling a home workstation, a productivity-focused machine, or a gaming-ready rig.
Equipped with the AMD B850 chipset, the MSI PRO B850M-B GEN4 is built to work with AMD Ryzen 9000/8000/7000 series desktop processors on the AM5 socket. This compatibility makes it suitable for upgrading from older platforms while keeping performance and efficiency in mind. If you’re planning a new build, pairing this motherboard with a supported Ryzen CPU helps you take advantage of contemporary desktop features and ensures stable operation for everyday tasks like office work, web browsing, content creation, and multitasking.
As a Micro-ATX motherboard, it offers a practical balance between expansion flexibility and a more compact footprint compared to larger ATX boards. This is especially useful when you want a clean, manageable build inside smaller cases or when you’re optimizing desk space. Compared to full-size boards, Micro-ATX systems often feel easier to assemble and cable-manage, while still delivering a solid foundation for a complete desktop setup.
This motherboard includes 2 memory slots and supports up to 128GB maximum memory. That makes it a good fit for users who need more headroom for heavier workloads such as photo editing, video workflows, virtualization, or running multiple applications simultaneously. With 2 slots, you can plan your memory configuration based on your current needs—starting with a practical capacity and later upgrading toward the maximum supported memory as your usage grows.
For buyers in Bangladesh looking for a reliable AM5 motherboard option, the MSI PRO B850M-B GEN4 is positioned as a modern platform for Ryzen 9000/8000/7000 series CPUs. The product listing indicates a starting price of 18,500 BDT, with pricing that may vary depending on customization and product availability. If you’re building an office or corporate system, this board can be a sensible foundation due to its straightforward AM5 compatibility and support for substantial memory capacity—helping teams deploy consistent desktop performance across multiple machines.
Before purchasing, confirm that your chosen Ryzen CPU is within the supported 9000/8000/7000 series range for the AM5 socket. Also consider your intended memory plan: with 2 slots and support up to 128GB, you can select a configuration that matches your workload today while leaving upgrade potential for the future. For users who want a dependable motherboard for daily computing and long-term platform use, the MSI PRO B850M-B GEN4 offers a balanced feature set for a Micro-ATX AM5 DDR5 desktop build.
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