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MSI PRO B850M-A WiFi PZ Motherboard, mATX - Supports AMD Ryzen 9000/8000/7000 Processors, AM5 - DDR5 Memory Boost (8200+ MT/s OC), PCIe 5.0 x16 & 4.0 x4, M.2 Gen5, Wi-Fi 7, 5G LAN

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Supports AMD Ryzen™ 9000 / 8000 / 7000 Series Desktop Processors
Supports DDR5 Memory, Dual Channel DDR5 8200+ MT/s (OC)
Ultra Performance: Direct 8+2+1 Power System 60A SPS, 8+4-pin CPU power connectors, Core Boost, Memory Boost, 6-layer PCB made by 2oz thickened copper and server-grade level material
Frozr Guard: Extended Heatsink, MOSFET thermal pads rated for 7W/mK, additional choke thermal pads and M.2 Shield Frozr are built for high performance system and non-stop experience
EZ DIY: EZ M.2 Clip II, EZ PCIe Clip II, and EZ Antenna
Lightning Fast Game experience: PCIe 5.0 slot and Lightning Gen 5 x4 M.2
5G LAN with Wi-Fi 7 Solution: the latest solution for professional and multimedia use, delivering secure, stable, and high-speed networking and data transmission
Audio Boost: Reward your ears with studio grade sound quality for the most immersive gaming experience

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

The Open Box Product Disclaimer applies to this product. Please note that this product is non-returnable and non-refundable.

Specs

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Learn more about the MSI PRO B850M-A WIFI PZ

Model
Brand	MSI
Model	PRO B850M-A WIFI PZ

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

Chipsets
Chipset	AMD B850

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

Expansion Slots
PCI Express 5.0 x16	4x PCI-E x16 slot 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 3.0 supports up to x1 (From Chipset) PCI_E4 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 processor)
PCI Express x4	1 x PCIe 4.0 x4 slot
PCI Express x1	2 x PCIe 3.0 x1 slots

Storage Devices
Serial ATA (SATA)	4 x SATA 6Gb/s
M.2	2x 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 4.0 x4 , supports 2280/2260 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 4.0 x4 • Supports up to PCIe 4.0 x2 (For Ryzen™ 8500/ 8300 Series processors) *Please refer to the manual for M.2 SSD heatsink restrictions.

Onboard Audio
Audio Chipset	Realtek® ALC897
Audio Channels	7.1-Channel High Definition Audio

Onboard LAN
LAN Chipset	Realtek® 8126 5G LAN
Max LAN Speed	5Gbps
Wireless LAN	Wi-Fi 7 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
Bluetooth	Supports Bluetooth® 5.4**, MLO, 4KQAM

Rear Panel Ports
Back I/O Ports	1 x Clear CMOS Button / 1 x DisplayPort / 1 x Flash BIOS Button / 1 x HDMI / 2 x Antenna Bracket / 2 x USB 3.1 Gen 1 Type-A / 2 x USB 3.1 Gen 2 Type-A / 2 x USB 3.2 Gen 2 Type-C / 3 x Audio Jacks

Internal I/O Connectors
Onboard USB	4x USB 2.0 (Front) 2x USB 5Gbps Type A (Front) 1x USB 10Gbps Type C (Front)
Other Connectors	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) 3x System Fan 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)

Physical Spec
Form Factor	Micro ATX
Dimensions (W x L)	243.84mmx243.84mm

Software Feature
Windows 11	Support for Windows® 11 64-bit

Features
Features	MSI motherboards are designed with advanced hardware and technology, well-supporting the demanding computing usage of gaming and AI. Moreover, we also introduce AI to MSI Center and BIOS, making everything more effortless than before. 4x EZ Debug LED 1x EZ Memory Detection LED Supports RAID 0 and RAID 1 for M.2 NVMe storage devices Supports RAID 0, RAID 1, and RAID 10 for SATA storage devices Back-Connect Design The PRO B850M-A WIFI PZ features a back-connect design, which relocates the motherboard power, CPU power, fan pins, SATA, and other interfaces to the back of the motherboard. This allows for simpler cable management, while also providing a cleaner and more aesthetically pleasing appearance for the system. DIRECT 8+2+1 POWER DESIGN Unleash and sustain the maximum performance with a VRM design built with a total of 8+2+1 digital power phases. With 8+4-pin power connectors, PRO B850M-A WIFI PZ is ready for the challenge of heavy-loading tasks. HIGH-BANDWIDTH AND LOW-LATENCY NETWORK MSI's premium network solution provides incredible data transfer speed for demanding users.

Additional Information
First Listed on Newegg	February 20, 2026