MSI Pro B850-P Wifi DDR5 AMD Motherboard
MPN MSI-PRO-B850-P-WIFI · Brand MSI
The MSI Pro B850-P WiFi is an AM5 DDR5 motherboard featuring AMD B850 chipset, Wi-Fi 7, PCIe 5.0 M.2 storage, and a robust 12+2+1 VRM design for AMD Ryzen 9000/8000/7000 series processors
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Overview
The MSI Pro B850-P WiFi is a full-ATX motherboard built on the AMD B850 chipset, designed to support AMD Ryzen 9000, 8000, and 7000 series desktop processors via the AM5 socket. Its clean silver-accented PCB is engineered to complement both white and black system builds, making it a versatile platform for productivity workstations and performance desktops alike. At the heart of its power delivery sits a 12+2+1 digital power phase design with dual CPU power connectors and a supplemental 8-pin PCIe power connector, ensuring stable voltage regulation for demanding Ryzen 9000 series processors. Memory support extends to four DDR5 UDIMM slots with a maximum capacity of 256 GB, and overclocking headroom reaches DDR5-8200+ MT/s (1DPC 1R configuration) via AMD EXPO. Dual-channel operation, non-ECC unbuffered memory, and CUDIMM support in clock-driver bypass mode are all catered for. Connectivity is a standout strength. The onboard Wi-Fi 7 module (pre-installed in the M.2 Key-E slot) supports 2.4 GHz, 5 GHz, and 6 GHz bands with 320 MHz channel width for speeds up to 5.8 Gbps, MU-MIMO TX/RX, MLO, and 4KQAM. Wired networking is handled by a 5G LAN controller. Bluetooth 5.4 is also included. Storage options include three M.2 slots — the primary M.2_1 slot (CPU-direct) supports up to PCIe 5.0 x4 with EZ M.2 Shield Frozr II tool-free heatsink and EZ M.2 Clip II tool-free retention. M.2_2 (CPU-direct) supports up to PCIe 4.0 x4, and M.2_3 (chipset) supports PCIe 4.0 x2. Four SATA 6 Gbps ports round out storage, with RAID 0 and RAID 1 supported for NVMe M.2 devices. Expansion is handled by four PCIe slots: PCI_E1 runs PCIe 5.0 x16 (CPU-direct, for Ryzen 9000/7000), PCI_E3 supports PCIe 4.0 x4 (chipset), and two PCIe 3.0 x1 chipset slots cover auxiliary cards. USB connectivity spans USB 2.0, USB 5 Gbps (Type-A and Type-C), and USB 10 Gbps ports across both rear I/O and internal headers. Display output is provided via a single HDMI 2.1 port supporting up to 4K 60 Hz for APU-based builds. Audio is managed by a Realtek ALC897 codec delivering 7.1-channel HD audio, with MSI's Isolated Analogy Structure separating the audio connector framework from the PCB layout to reduce interference. RGB enthusiasts are served by three ARGB V2 headers and one standard RGB header. The board also ships with a TPM 2.0 header and a chassis intrusion connector. Verified Specifications: - Chipset: AMD B850 - Socket: AM5 - CPU Support: AMD Ryzen 9000 / 8000 / 7000 series - Memory: 4x DDR5 UDIMM, max 256 GB; DDR5-4800 (JEDEC) to DDR5-8200+ MT/s (OC/EXPO) - M.2 Slots: 3x (PCIe 5.0 x4 / PCIe 4.0 x4 / PCIe 4.0 x2) - SATA: 4x SATA 6 Gbps - PCIe: 1x PCIe 5.0 x16, 1x PCIe 4.0 x4, 2x PCIe 3.0 x1 - USB (Rear): 4x USB 2.0, 1x USB 5 Gbps Type-A, 1x USB 10 Gbps Type-A, 2x USB 10 Gbps Type-C - Wireless: Wi-Fi 7 (802.11be), up to 5.8 Gbps, 6 GHz / 5 GHz / 2.4 GHz - Bluetooth: 5.4 - LAN: 5G wired LAN - Audio: Realtek ALC897, 7.1-channel HD Audio - Display: 1x HDMI 2.1 (4K 60 Hz) - VRM: 12+2+1 digital power phases - RGB: 3x ARGB V2 + 1x RGB header
Datasheet
| Chipset | AMD B850 |
|---|---|
| CPU Type | Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processors Socket AM5 |
| USB | 4x USB 2.0 (Rear) 4x USB 2.0 (Front) 1x USB 5Gbps Type A (Rear) 4x USB 5Gbps Type A (Front) 1x USB 5Gbps Type C (Front) 1x USB 10Gbps Type A (Rear) 2x USB 10Gbps Type C (Rear) |
| Raid | Supports RAID 0 and RAID 1 for M.2 NVMe storage devices |
| Slot | 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 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) |
| Audio | Realtek® ALC897 7.1-Channel High Definition Audio |
| 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 4800+ MT/s 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* |
| 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 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 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™ 8700/ 8600/ 8400 Series processors) • Supports up to PCIe 3.0 x2 (For Ryzen™ 8500/ 8300 Series processors) |
| Internal Io | 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 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 5Gbps Type C ports |
| Onboard Graphics | 1x HDMI™ Support HDMITM 2.1, maximum resolution of 4K 60Hz* |
| Wireless Lan & Bluetooth | 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* (320MHz) up to 5.8Gbps Supports 802.11 a/ b/ g/ n/ ac/ ax/ be Supports Bluetooth® 5.4**, MLO, 4KQAM |




