MSI PRO B840M-B AM5 Micro ATX Motherboard
£79.19 inc VAT
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About This Item
- AMD B840 micro ATX motherboard for Socket AM5
- Supports AMD Ryzen 7000/8000/9000 Series processors
- 2x M.2 slots with PCIe 4.0 support for NVMe SSDs
- 4x SATA III connectors for additional storage
- 2x DDR5 DIMM slots supporting up to 128GB
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MSI PRO B840M-B | AMD B840 Micro ATX Motherboard
The MSI PRO B840M-B motherboard with AMD B840 chipset and Socket AM5 is a micro ATX platform built for professionals who need reliable multitasking and efficient performance. Designed for AMD Ryzen 7000, 8000, and 9000 Series processors, this board supports DDR5 memory and delivers stable power delivery through its 7+2+1 digital VRM design.
Key Specifications
| Metric | Spec. |
|---|---|
| Processor Socket | Socket AM5 |
| Memory Support | DDR5, 2x DIMM slots, up to 128 GB |
| Maximum Memory Speed | 8000 MHz |
| Storage Interfaces | M.2, Micro SATA III |
| USB Ports | 4x USB 3.2 Gen 1, 2x USB 2.0 |
| PCIe Slots | 2x PCIe x16 |
| LAN | 2.5 GbE via Realtek RTL8125D |
| Audio | Realtek ALC897, 7.1 channels |
| Form Factor | micro ATX (226 x 243.8 mm) |
Direct 7+2+1 Power Design for Stable Performance
The PRO B840M-B uses a 7+2+1 digital power phase design to deliver clean, consistent power to your CPU. This architecture helps maintain peak performance during heavy workloads and multitasking, making it ideal for business users and creators who need dependable operation.
Enhanced Cooling for Long-Term Reliability
A chipset heatsink reduces dust build-up and noise while maintaining efficient heat dissipation. Combined with five chassis fan headers and one CPU fan header, the board offers flexible cooling options to keep temperatures in check during extended use.
High-Speed Storage and Connectivity
With two M.2 slots supporting PCIe 4.0 and four SATA III ports, you can install multiple SSDs and HDDs for fast data access. The board supports RAID 0, 1, and 10 configurations, giving you options for speed or redundancy. USB 3.2 Gen 1 ports provide quick connections for peripherals, while the 2.5 GbE LAN ensures low-latency networking.
Box Contents
- MSI PRO B840M-B motherboard
- I/O shield
- User manual
- Driver/software disc
- SATA cables (quantity may vary)
Check Before You Buy
- Confirm your CPU is compatible with Socket AM5 (Ryzen 7000/8000/9000 Series).
- Verify your case supports micro ATX dimensions (226 x 243.8 mm).
- Ensure your power supply has an 8-pin CPU connector.
- Check if your DDR5 memory is on the motherboard’s qualified vendor list.
Frequently Asked Questions
Q: Does this motherboard support integrated graphics?
A: No, the PRO B840M-B does not have on-board graphics. You will need a dedicated GPU.
Q: How many M.2 drives can I install?
A: The board has two M.2 slots, both supporting PCIe 4.0 x4 for high-speed SSDs.
Q: What RAID levels are supported?
A: RAID 0, 1, and 10 are supported via the chipset.
Q: Is Wi-Fi included?
A: No, this model does not include built-in Wi-Fi. You would need a separate Wi-Fi card or adapter.
Q: What is the maximum RAM capacity?
A: The board supports up to 128 GB of DDR5 memory across its two DIMM slots.
The Consultant’s Verdict & Warranty
The MSI PRO B840M-B is a solid choice for professionals and small business users who want a dependable micro ATX platform with modern connectivity and strong power delivery. Its support for the latest Ryzen processors, DDR5 memory, and fast storage makes it future-proof for demanding workloads. Covered by the standard Manufacturer Warranty.
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