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MSI PRO B840M-B AMD AM5 Micro ATX Motherboard
MSI PRO B840M-B AMD AM5 Micro ATX Motherboard
MSI PRO B840M-B AMD AM5 Micro ATX Motherboard
MSI PRO B840M-B AMD AM5 Micro ATX Motherboard
MSI PRO B840M-B AMD AM5 Micro ATX Motherboard
MSI PRO B840M-B AMD AM5 Micro ATX Motherboard
MSI PRO B840M-B AMD AM5 Micro ATX Motherboard
MSI PRO B840M-B AMD AM5 Micro ATX Motherboard
MSI PRO B840M-B AMD AM5 Micro ATX Motherboard
MSI PRO B840M-B AMD AM5 Micro ATX Motherboard

MSI PRO B840M-B AMD AM5 Micro ATX Motherboard

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Delivery Timescale: 3-5 Days

Specification

BrandMSI
Memory Type2 × DDR5 UDIMM
Maximum MemoryUp to 128GB DDR5 (Up to 8000+ MT/s OC)
Connector & PortsUSB 5Gbps Type-A, USB 5Gbps Type-C (Front), USB 2.0, HDMI, VGA, 2.5G LAN, Audio Jacks
Expansion Slots1 × PCIe 4.0 x16, 1 × PCIe 3.0 x1
ModelPRO B840M-B
Graphics1 × HDMI 2.1 (Up to 4K@60Hz), 1 × VGA (Processor with Integrated Graphics Required)
CompatibilityAMD Ryzen 9000, 8000, and 7000 Series Desktop Processors (Socket AM5)
ChipsetAMD B840
Storage2 × PCIe 4.0 M.2 Slots, 4 × SATA 6Gb/s, RAID 0/1/10 Support
Others InfoMicro ATX Form Factor, Realtek ALC897 7.1-Channel Audio, Realtek 8125D 2.5G LAN, AMD EXPO Memory Support, TPM 2.0 Header, EZ Debug LED, EZ Memory Detection LED, Flash BIOS Button, RGB & Addressable RGB Headers

Descriptions

MSI PRO B840M-B AMD AM5 Micro ATX Motherboard

Build a reliable and future-ready AMD PC with the MSI PRO B840M-B AMD AM5 Micro ATX Motherboard. is designed for everyday users, professionals, and gamers looking for a stable platform for the latest AMD Ryzen processors. Supporting AMD Ryzen 9000, 8000, and 7000 Series processors, this motherboard combines DDR5 memory support, PCIe 4.0 connectivity, dual M.2 slots, and high-speed 2.5G LAN to deliver responsive performance for work, gaming, and content creation. Its compact Micro ATX design makes it a great choice for space-saving desktop builds without sacrificing essential features.

Ready for AMD Ryzen 9000 Series

Built on the AMD B840 chipset with the AM5 socket, this motherboard supports AMD Ryzen 9000, 8000, and 7000 Series processors, offering excellent performance for gaming, productivity, and future upgrades.

High-Speed DDR5 Memory Support

Featuring two DDR5 DIMM slots with support for up to 128GB of memory and overclocking speeds up to 8000+ MT/s, the PRO B840M-B delivers faster multitasking and improved overall system responsiveness.

MSI PRO B840M-B AMD AM5 Micro ATX Motherboard Key Highlights

  • Supports AMD Ryzen 9000, 8000, and 7000 Series desktop processors.
  • AMD B840 chipset with the latest AM5 platform.
  • Up to 128GB DDR5 memory with support for 8000+ MT/s (OC).
  • Two PCIe 4.0 M.2 slots and four SATA ports for flexible storage.
  • PCIe 4.0 x16 slot for modern graphics cards.
  • Realtek 2.5G LAN delivers fast and reliable wired networking.
  • HDMI 2.1 and VGA outputs for processors with integrated graphics.

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