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MSI MAG B850M MORTAR WIFI AM5 AMD B850 Micro ATX Motherboard

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AMD B850
Ryzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
Support DDR5 8200 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s

Overview

Specs

Reviews (5)

MAG B850M MORTAR WIFI is designed for gamers with a stable, durable and DIY friendly foundation for their PC builds. Coming up with true Wi-Fi 7 solution, 5G LAN, USB 20Gbps, PCIe 5.0 solutions, Supplemental PCIe Power, and exclusive EZ DIY features, it's ready for the battlefield of AMD Ryzen 9000 series processors.

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Limited Warranty period (parts): 3 years
Limited Warranty period (labor): 3 years
Read full details

Return Policies

We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2025 and December 31, 2025 you will have until January 31, 2026 to return your product.

Return for refund until: January 31, 2026

Return for replacement until: January 31, 2026

This item is covered by Newegg.ca's Extended Holiday Return Policy.
Read full return policy for details.

Number of Memory Slots	4x288pin (DDR5)
Memory Standard	Support DDR5 8200 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s
Maximum Memory Supported	256GB
Channel Supported	Dual Channel
ECC Supported	Non-ECC
Buffer Supported	Un-buffered
Memory Feature	Supports AMD POR Speed and JEDEC Speed Supports Memory Overclocking and AMD EXPO Supports Dual-Channel mode Supports Non-ECC, Un-buffered memory Supports CUDIMM, Clock Driver bypass mode only

PCI Express 5.0 x16	PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU) 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 processors)
PCI Express 4.0 x16	PCI_E2 Gen PCIe 4.0 supports up to x4 (From Chipset)

Serial ATA (SATA)	4 x SATA 6Gb/s
M.2	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 5.0 x4 (For Ryzen 9000/ 7000 Series processors) - Supports up to PCIe 4.0 x4 (For Ryzen 8700/ 8600/ 8400 Series processors) - Supports up to PCIe 4.0 x2 (For Ryzen 8500/ 8300 Series processors) M2_3 slot - Supports up to PCIe 4.0 x2
SATA RAID	Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices Supports RAID 0, RAID 1 and RAID 5 for M.2 NVMe storage devices *RAID 5 configuration is only supported by Ryzen 9000 series processors.

Audio Chipset	Realtek ALC4080
Audio Channels	7.1 Channels

Max LAN Speed	5Gbps
Wireless LAN	Wi-Fi 802.11 be
Bluetooth	Bluetooth 5.4

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MSI MAG B850M MORTAR WIFI AM5 AMD B850 Micro ATX Motherboard

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Customer Reviews of the MSI MAG B850M MORTAR WIFI

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Warranty, Returns, And Additional Information

Warranty

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Manufacturer Contact Info

CPU Socket Type	AM5
CPU Type	Ryzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series

Onboard USB	4 x USB 2.0 ports 2 x USB 5Gbps Type A ports 1 x USB 10Gbps Type C ports
Other Connectors	1 x CPU Fan 1 x Combo Fan (Pump_Sys Fan) 4 x System Fan 1 x EZ Conn-header (JAF_1) 2 x Front Panel (JFP) 1 x Chassis Intrusion (JCI) 1 x Front Audio (JAUD) 1 x Tuning Controller connector(JDASH) 3 x Addressable V2 RGB LED connector (JARGB_V2) 1 x RGB LED connector(JRGB) 1 x TPM pin header(Support TPM 2.0)

Form Factor	Micro ATX
Dimensions (W x L)	9.6" x 9.6"
Power Pin	1 x Power Connector(ATX_PWR) 2 x Power Connector(CPU_PWR) 1 x Power Connector(PCIE_PWR 8pin)

Item#: N82E16813144715

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MSI MAG B850M MORTAR WIFI AM5 AMD B850 Micro ATX Motherboard

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Learn more about the MSI MAG B850M MORTAR WIFI

Customer Reviews of the MSI MAG B850M MORTAR WIFI

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info