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MSI MAG B850 GAMING PLUS MAX WIFI

UK manufacturer catalogue configuration · MSI part 911-7E56-030

CPU socket
AM5
Chipset
AMD B850
PCB form factor and dimensions
ATX 243.84mmx304.8mm

MSI MAG B850 GAMING PLUS MAX WIFI in the manufacturer’s documented UK configuration. Its published technical specifications retain the source’s connection, mode and configuration conditions.

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THE ACTUAL PRODUCT
MSI MAG B850 GAMING PLUS MAX WIFI official product image
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with MSI MAG X870E TOMAHAWK MAX WIFI
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Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.

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Key strengths

The manufacturer documents the exact product configuration and its main interfaces together in one specification table.

Manufacturer source
The checks that matter.

Before you buy

Published capabilities and maximum figures are manufacturer claims. They do not establish independently measured performance, stock or compatibility outside the stated conditions.

Manufacturer source
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Works with

Products in this catalogue that list the same socket or memory type as the MSI MAG B850 GAMING PLUS MAX WIFI. A shared socket or memory type is necessary but not sufficient: check the exact CPU and memory support lists, and the BIOS version, before buying.

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Every specification. With its source.

Full specifications

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Exact configuration: UK manufacturer catalogue configuration · 911-7E56-030

17 specifications in 9 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”. 1 row repeats a listed fact in the manufacturer’s own wording, kept under “Manufacturer wording”.

Platform & board

3 items
CPU socket
AM5Source
Chipset
AMD B850Source
PCB form factor and dimensions
ATX 243.84mmx304.8mmSource

Memory

1 item
Memory generation, slots, capacity and conditions
4x DDR5 UDIMM, Maximum Memory Capacity 256GB 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 6400+ MT/s • 2DPC 1R Max speed up to 6400+ MT/s • 2DPC 2R Max speed up to 6000+ MT/s Supports AMD POR Speed and JEDEC Speed Supports Memory Overclocking and AMD EXPO TM Supports Dual-Channel mode Supports Non-ECC, Un-buffered memory Supports 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/.Source

Expansion slots

1 item
Expansion slots and CPU restrictions
4x PCI-E x16 slot (Qty) PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU) PCI_E2 Gen PCIe 3.0 supports up to x1 (From Chipset) PCI_E3 Gen PCIe 4.0 supports up to x4 (From Chipset) PCI_E4 Gen PCIe 3.0 supports up to x1 (From Chipset) PCI_E1 slot • Supports PCIe 5.0 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) *PCI_E2, PCI_E3 & PCI_E4 share the bandwidth, PCI_E3 slot will run at x2 speed when installing devices in the PCI_E2 or PCI_E4 slot.Source

Storage

3 items
Storage interfaces and lane-sharing conditions
3x M.2 (Qty) M.2_1 Source (From CPU) supports up to PCIe 5.0 x4, supports 2280/2260 devices M.2_2 Source (From CPU) supports up to PCIe 4.0 x4, supports 22110/2280 devices M.2_3 Source (From Chipset) supports up to PCIe 4.0 x2, supports 2280/2260 devices 4x SATA 6G (Qty) 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 (For Ryzen™ 9000/ 7000 Series processors) • Supports up to PCIe 3.0 x4 (For Ryzen™ 8500/ 8300 Series processors) *Please refer to the manual for M.2 SSD heatsink restrictions.Source
SATA RAID modes and restrictions
Supports RAID 0 and RAID 1 for SATA storage devices

Full manufacturer RAID restrictions: Supports RAID 0 and RAID 1 for SATA storage devices Supports RAID 0 and RAID 1 for M.2 NVMe storage devices. SATA and NVMe modes are not inferred from each other.

Source
M.2 NVMe RAID modes and restrictions
Supports RAID 0 and RAID 1 for M.2 NVMe storage devices

Full manufacturer RAID restrictions: Supports RAID 0 and RAID 1 for SATA storage devices Supports RAID 0 and RAID 1 for M.2 NVMe storage devices. SATA and NVMe modes are not inferred from each other.

Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

Full manufacturer RAID specification
Supports RAID 0 and RAID 1 for SATA storage devices Supports RAID 0 and RAID 1 for M.2 NVMe storage devicesSource

USB & rear connections

3 items
USB ports and headers
4x USB 2.0 (Rear) 4x USB 2.0 (Front) 1x USB 5Gbps Type A (Rear) 4x USB 5Gbps Type A (Front) 1x USB 10Gbps Type A (Rear) 2x USB 10Gbps Type C (Rear) 1x USB 10Gbps Type C (Front)Source
Rear-panel ports
Clear CMOS Button USB 10Gbps (Type-A) USB 2.0 5G LAN Wi-Fi / Bluetooth Audio connectors Flash BIOS Button DisplayPort USB 10Gbps (Type-C) USB 10Gbps (Type-C) USB 5Gbps (Type-A) S/PDIF-OUTSource
Processor-dependent display outputs
1x DisplayPort Support DisplayPort 1.2 with HBR2, maximum resolution of 4K 60Hz* *Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.Source

Networking

1 item
Network interfaces and operating-system conditions
lan: Realtek ® 8126 5G LAN; wireless lan & bluetooth: Wi-Fi 7 Solution The Wireless module is pre-installed in the M.2 (Key-E) slot Supports MU-MIMO TX/RX, 2.4GHz/ 5GHz/ 6GHz* (160MHz) up to 2.9Gbps Supports 802.11 a/ b/ g/ n/ ac/ ax/ be Supports Bluetooth ® 5.4**, MLO, 4KQAM * 6GHz band support may depend on every country’s regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2. ** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2.Source

Audio

1 item
Onboard audio specification
Realtek ® ALC897 7.1-Channel High Definition AudioSource

Power, cooling & lighting

1 item
Internal headers and connectors
1x Power Connector(ATX_PWR) 2x Power Connector(CPU_PWR) 1x Power Connector(PCIE_PWR 8pin) 1x CPU Fan 1x PUMP_SYS Fan 4x System Fan 1x ARGB+FAN Header (JAF_1) 2x Front Panel (JFP) 1x Chassis Intrusion (JCI) 1x Front Audio (JAUD) 1x Com Port (JCOM) 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 4x USB 5Gbps Type A ports 1x USB 10Gbps Type C portsSource

BIOS, software & diagnostics

3 items
CPU and firmware support
Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processors Socket AM5

Manufacturer-listed processor families; exact CPU support and necessary BIOS revision depend on the current MSI support list. A family statement is not a guarantee for every CPU.

Source
Supported operating systems
Support for Windows ® 11 64-bitSource
Diagnostic features
4x EZ Debug LED 1x EZ Memory Detection LEDSource
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