Skip to content

MSI · AM5 · B850M

MSI MAG B850M Mortar WiFi

Micro-ATX · DDR5 · 4 DIMMs · 12-phase VRM · 7

Quality
71
VRM
37
Value
67
Amazon
$200
MSI MAG B850M Mortar WiFi
View MSI MAG B850M Mortar WiFi Gallery in high resolution
$200
Available Updated 3 days, 15 hours ago
Overall70.6
VRM37.0
Chipset81.0
Expansion / storage66.0
Connectivity78.0
Audio91.0
Quality / price67.1
$200 on Amazon Motherboard table Compare this motherboard

Build with this motherboardSelect a CPU first so the Builder can confirm the socket and unlock this board. Choose the CPU first

Written analysis

MSI MAG B850M Mortar WiFi at a glance

The MSI MAG B850M Mortar WiFi uses the Micro-ATX form factor, AM5 socket, and B850M chipset. This is a balanced mainstream platform: enough expansion and connectivity for a performance PC without paying only for flagship extras.

Memory support is DDR5 across 4 DIMM slots, with up to 256 GB and rated overclocked speeds up to 8200 MT/s. XMP / EXPO memory-profile support is recorded for easier tuning.

Best fit: a performance gaming and productivity PC that needs a balanced board without workstation-class excess.

Power delivery

The calculated VRM score is 37.0, placing the power delivery in the entry-level class. The board lists 12 CPU power phases, 60 A power stages in a 12+2+1 layout. CPU power input is listed as 2. It is best paired with mainstream 65–105 W-class processors and good case airflow.

Expansion and storage

The expansion and storage score is 66.0: balanced . The platform supports PCIe 5.0. Physical expansion includes 1 ×16 slot, 1 ×4.

On-board storage consists of 3 M.2 slots and 4 SATA ports. Supported M.2 lengths are listed as 2280, 2260. That is enough NVMe capacity for a multi-drive gaming or creator setup without immediately relying on an add-in card.

Connectivity and rear I/O

The connectivity score is 78.0, rated strong . Wireless networking is Wi-Fi 7 ; wired networking is Realtek® 8126VB 5G LAN at up to 5000 Mbps. Bluetooth 5.4 is included. The recorded USB provision is 9 rear connections and 7 front-panel connections. The specification sheet below separates every USB speed and connector type.

Display connectivity includes HDMI 2.1 FRL. These motherboard outputs require a processor with integrated graphics.

Audio

The audio score is 91.0. This is an ultra-premium onboard implementation based on Realtek® ALC4080 Codec, aimed at users who want strong analogue output without immediately adding a USB DAC. The rear panel has 5 analogue jacks. Optical S/PDIF is present for digital audio equipment.

Buying verdict

Overall quality is 70.60, a strong performance-class result. This is the practical sweet spot for a powerful gaming or productivity PC without paying for every flagship extra.

At the recorded Amazon price, the quality-to-price score is 67.1—an excellent value relative to the other boards in the catalog.

Board data

Full specifications

Platform, expansion, storage, rear I/O, internal headers, networking, audio, and board controls in one sheet.

General

Manufacturer
MSI
Motherboard
MSI MAG B850M Mortar WiFi
Chipset / socket
B850M / AM5
Form factor
Micro-ATX
Launch price
—
Amazon price
$200
Availability
In stock
Price updated
3 days, 15 hours ago

VRM

CPU phases
12 (60 A)
Power design
12+2+1
EPS connector
2

Memory

Type / slots
DDR5 / 4 DIMMs
Max capacity / OC
256 GB / 8200 MT/s
Per DIMM
64 GB
XMP / EXPO
Yes

PCIe

Supported version
PCIe 5.0
x16 physical
1
x16 Gen 5
1
x4 physical
1
x4 Gen 4
1

Storage

M.2 slots
3
M.2 lengths
2280, 2260
SATA ports
4

Display outputs

HDMI
Yes · 2.1 FRL · 8K 60Hz
DisplayPort
No
USB-C DisplayPort
No

USB

Rear USB 3.2 Gen 1 Type-A 5 Gbps
4
Rear USB 3.2 Gen 2 Type-A 10 Gbps
3
Rear USB 3.2 Gen 2 Type-C 10 Gbps
1
Rear USB 3.2 Gen 2×2 Type-C 20 Gbps
1
Front USB 2.0
4
Front USB 3.2 Gen 1 Type-A 5 Gbps
2
Front USB 3.2 Gen 2 Type-C 10 Gbps
1
Header USB 2.0
4
Header USB 3.2 Gen 1 Type-A 5 Gbps
2
Header USB 3.2 Gen 2 Type-A 10 Gbps
1

Networking

Ethernet
Realtek® 8126VB 5G LAN
LAN ports
1
LAN speed
5000 Mbps
Wi-Fi
7
Wi-Fi bandwidth
320MHz
Bands
2.4GHz, 5GHz, 6GHz
Antenna connectors
2
Bluetooth
5.4

Audio

Chipset
Realtek® ALC4080 Codec
Analog jacks
5
Gold-plated jacks
No
Optical S/PDIF
Yes
Spatial audio
Rear output

Buttons

BIOS flashback
Yes
Clear CMOS
Yes
Q-Flash Plus
No
Smart button
No
Onboard start / reset
No

Additional information

Memory notes
Supports AMD EXPO™ memory overclocking. Supports AMD POR Speed and JEDEC Speed. Supports Un-buffered memory. Supports CUDIMM, Clock Driver bypass mode only. Ryzen™ 9000 Series Processors max overclocking frequencies: 1DPC 1R up to 8200+ MT/s, 1DPC 2R up to 6400+ MT/s, 2DPC 1R up to 6400+ MT/s, 2DPC 2R up to 6400+ MT/s.
Display notes
Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.
Expansion notes
PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU). PCI_E2 Gen PCIe 4.0 supports up to x4 (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 processors).
M.2_1
5.0 4 · 2280, 2260 · From CPU — Supports up to PCIe 5.0 x4 with Ryzen™ 9000/7000 Series processors, and up to PCIe 4.0 x4 with Ryzen™ 8000 Series processors.
M.2_2
5.0 4 · 2280, 2260 · From CPU — Supports up to PCIe 5.0 x4 with Ryzen™ 9000/7000 Series processors, up to PCIe 4.0 x4 with Ryzen™ 8700/8600/8400 Series processors, and up to PCIe 4.0 x2 with Ryzen™ 8500/8300 Series processors.
M.2_3
4.0 2 · 2280 · From Chipset
Audio notes
7.1-Channel USB High Performance Audio. Supports up to 32-bit/384kHz playback on front panel.
Networking notes
Wi-Fi 7 Solution. The Wireless module is pre-installed in the M.2 (Key-E) slot. Supports MU-MIMO TX/RX, up to 5.8Gbps. Supports 802.11 a/ b/ g/ n/ ac/ ax/ be. Bluetooth supports MLO, 4KQAM.
Button notes
The text lists a 'Flash BIOS Button' which is equivalent to a BIOS Flashback button.
Fan / RGB headers
1 CPU · — OPT · 1 AIO · 4 chassis · 3 ARGB · 1 RGB
Other headers
Front audio · System panel · TPM
Dimensions
24.4cm x 24.4cm

Extracted notes sit here. Official manufacturer copy is at the bottom of the page.

Amazon

Price history

Nearby quality

Similar motherboards

Boards on AM5 close to MSI MAG B850M Mortar WiFi on overall quality. Open the motherboard table to sort, filter, and compare side by side.

Compare these in the motherboard table

VRM fit

VRM-appropriate CPUs

AM5 processors whose TDP sits in this board’s VRM window. Socket match is required; chipset extras still matter on sTR5. This is a power-delivery filter, not a ranked CPU guide.

Open AM5 CPUs in the CPU table

Discussion

Comments on MSI MAG B850M Mortar WiFi

No comments yet.

Vendor copy

Official manufacturer data

Raw manufacturer text kept for reference. Structured specs above are extracted from this copy and are the source for scores and tables.

Memory

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 6400+ MT/s

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*

Graphics

1x HDMI™
Support HDMI™ 2.1 FRL, maximum resolution of 8K 60Hz*
*Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed.

Expansion slots

1x PCI-E x16 slot
1x PCI-E x4 slot
PCI_E1 Gen PCIe 5.0 supports up to x16 (From CPU)
PCI_E2 Gen PCIe 4.0 supports up to x4 (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 processors)

Storage

3x M.2
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 5.0 x4 , supports 2280/2260 devices
M.2_3 Source (From Chipset) supports up to PCIe 4.0 x2 , supports 2280 devices
4x SATA 6G

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

USB

4x USB 2.0 (Front)
4x USB 5Gbps Type A (Rear)
2x USB 5Gbps Type A (Front)
3x USB 10Gbps Type A (Rear)
1x USB 10Gbps Type C (Rear)
1x USB 10Gbps Type C (Front)
1x USB 20Gbps Type C (Rear)

Internal I/O

1x Power Connector(ATX_PWR)
2x Power Connector(CPU_PWR)
1x Power Connector(PCIE_PWR 8pin)
1x CPU Fan
1x Combo Fan (Pump_Sys Fan)
4x System Fan
1x EZ Conn-header (JAF_1)
2x Front Panel (JFP)
1x Chassis Intrusion (JCI)
1x Front Audio (JAUD)
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
2x USB 5Gbps Type A ports
1x USB 10Gbps Type C ports

Rear I/O

Clear CMOS Button
5G LAN
USB 10Gbps Type-A
USB 5Gbps Type-A
Audio Connectors
Flash BIOS Button
HDMI™
USB 10Gbps Type-A
USB 10Gbps Type-C
USB 20Gbps Type-C
Wi-Fi / Bluetooth
Optical S/PDIF Out

Wireless

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* (320MHz) up to 5.8Gbps
Supports 802.11 a/ b/ g/ n/ ac/ ax/ be

Supports Bluetooth® 5.4**, MLO, 4KQAM

Audio

Realtek® ALC4080 Codec
7.1-Channel USB High Performance Audio
Supports up to 32-bit/384kHz playback on front panel
Supports S/PDIF output

Privacy controls

Choose whether optional analytics may run. Necessary storage remains active because it supports security, login, requested preferences, and this choice.

Necessary Security, sessions, forms, and preferences you request.
Always active