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MSI PRO B840M-B Motherboard
  • Model:PRO B840M-B
  • Supports AMD Ryzen 7000/8000/9000 Series CPUs
  • AMD B840 chipset, AM5 socket, Micro-ATX form factor
  • Dual Channel DDR5 8000+ MT/s (OC) memory support
  • PCIe 4.0 slots, 2.5G LAN, Front USB Type-C
  • 3 Years Warranty from MSI
₹ 9,800
Next Day Dispatch
1
Chipset
AMD B840
CPU
Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop ProcessorsSocket AM5
Memory
2x DDR5 UDIMM, Maximum Memory Capacity 128GBMemory Support DDR5 8000 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/sRyzen™ 9000 Series Processors max. overclocking frequency:• 1DPC 1R Max speed up to 8000+ MT/s• 1DPC 2R Max speed up to 7200+ MT/sSupports AMD POR Speed and JEDEC SpeedSupports Memory Overclocking and AMD EXPOTMSupports Dual-Channel modeSupports Non-ECC, Un-buffered memorySupports CUDIMM, Clock Driver bypass mode only** CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility.• The DIMM slots on this motherboard have single-sided latches.• Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/.
Onboard Graphics
1x HDMI™Support HDMITM 2.1, maximum resolution of 4K 60Hz*1x VGASupport VGA, maximum resolution of 2048x1536 50Hz, 2048x1280 60Hz, 1920x1200 60Hz**Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.
Slot
1x PCI-E x16 slot1x PCI-E x1 slotPCI_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)
Audio
Realtek® ALC8977.1-Channel High Definition Audio
Storage
2x M.2M.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 6GM2_2 slot• Supports up to PCIe 4.0 x4• Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors)
RAID
Supports RAID 0, RAID 1 and RAID 10 for SATA storage devicesSupports RAID 0 and RAID 1 for M.2 NVMe storage devices
USB
2x USB 2.0 (Rear)4x USB 2.0 (Front)4x USB 5Gbps Type A (Rear)2x USB 5Gbps Type A (Front)1x USB 5Gbps Type C (Front)
LAN
Realtek® 8125D 2.5G LAN
Internal IO
1x Power Connector(ATX_PWR)1x Power Connector(CPU_PWR)1x CPU Fan2x System Fan2x 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 ports2x USB 5Gbps Type A ports1x USB 5Gbps Type C ports
LED FEATURE
4x EZ Debug LED1x EZ Memory Detection LED
BACK PANEL PORTS
1. Clear CMOS Button2. HDMI™3. VGA4. USB 5Gbps Type-A5. 2.5G LAN6. Audio connectors7. Flash BIOS Button8. USB 2.0
OPERATING SYSTEM
Support for Windows® 11 64-bit
PCB Info
mATX226mmx243.84mm