Specifications
- Chipset
- AMD B850
- CPU Socket
- AM5 – supports Ryzen 9000/8000/7000 series desktop processors
- Memory Slots
- 4× DDR5 UDIMM
- Maximum Memory Capacity
- 256 GB
- Memory Speed (OC)
- DDR5 8200–5600 MT/s
- Memory Speed (JEDEC)
- DDR5 5600–4800 MT/s
- Onboard Graphics
- HDMI 2.1, max 4K 60 Hz (integrated GPU only)
- Audio Chip
- Realtek ALC897 7.1‑Channel HD Audio
- PCIe Slots
- 4× PCI‑E x16 – E1 Gen5, E2 Gen3, E3 Gen4, E4 Gen3
- M.2 Slots
- 3× M.2 (M1 Gen5 x4, M2 Gen4 x4, M3 Gen4 x2) with 2280/2260/22110 support
- SATA Ports
- 4× SATA 6 Gb/s
- RAID Support
- RAID 0 / RAID 1 for SATA and NVMe devices
- USB Rear – 2.0
- 4× USB 2.0
- USB Rear – 5 Gbps Type‑A
- 1× USB 5 Gb/s Type‑A
- USB Rear – 10 Gbps Type‑A
- 1× USB 10 Gb/s Type‑A
- USB Rear – 10 Gbps Type‑C
- 2× USB 10 Gb/s Type‑C
- USB Rear – 5 Gbps Type‑C
- 1× USB 5 Gb/s Type‑C
- USB Front – 2.0
- 4× USB 2.0
- USB Front – 5 Gbps Type‑A
- 4× USB 5 Gb/s Type‑A
- USB Front – 5 Gbps Type‑C
- 1× USB 5 Gb/s Type‑C
- LAN
- Realtek 8126VB 5 G LAN
- Wireless
- Wi‑Fi 7 (802.11be), up to 5.8 Gbps, Bluetooth 5.4 MLO
- Power Connectors
- ATX 24‑pin, 2× CPU 8‑pin, 1× PCIe 8‑pin
- Fan Headers
- 1× CPU fan, 1× Combo (pump/sys), 4× System fans
- Front Panel Connectors
- 2× JFP, 1× JCI, 1× JAUD, 1× JCOM, 1× JDASH
- RGB Headers
- 3× Addressable V2 RGB LED, 1× RGB LED
- TPM Header
- 1× TPM 2.0
- Back Panel Ports – Clear CMOS Button
- 1×
- Back Panel Ports – USB 10 Gbps Type‑A
- 1×
- Back Panel Ports – USB 2.0
- 4×
- Back Panel Ports – 5G LAN
- 1×
- Back Panel Ports – Wi‑Fi/Bluetooth
- 1×
- Back Panel Ports – Audio Connectors
- 1×
- Back Panel Ports – Flash BIOS Button
- 1×
- Back Panel Ports – HDMI
- 1×
- Back Panel Ports – USB 10 Gbps Type‑C
- 2×
- Included Accessories – EZ PCIe Clip II
- Yes
- PCIe Steel Armor Slots
- Yes
- Lightning Gen 5 PCIe Bandwidth
- Up to 128 GB/s on x16
- Supplemental PCIe Power Connector
- Available
Photos
What reviewers say

The MSI Pro B850‑P WiFi is a creation‑oriented ATX motherboard for the AMD AM5 socket that supports Ryzen 9000/8000/7000 series CPUs. It features a 12+2+1 Duet Rail Power System, dual‑channel DDR5 up to 8200+ MT/s (OC), a primary PCIe 5.0 x16 slot, three M.2 slots (including one Gen 5 x4), Wi‑Fi 7, 5G LAN, and a front USB 3.2 Gen 2 Type‑C port. The board is praised for its future‑proof networking, tool‑free M.2 installation via EZ M.2 Shield Frozr II, and high‑speed memory overclocking. Drawbacks include a basic ALC897 audio codec and reports of high idle CPU temperatures that may need a BIOS update.
frontum.co.uk ↗







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