MSI PRO B850M-P WIFI AM5 DDR5 Motherboard with PCIe 5.0

MSI B850 mATX Motherboard – Specifications

General

• Model: MSI B850 (micro-ATX form factor)
• Chipset: AMD B850
• Socket: AM5

CPU Support

• AMD Ryzen™ 9000 Series
• AMD Ryzen™ 8000 Series
• AMD Ryzen™ 7000 Series

Memory

• Slots: 4 × DDR5 UDIMM
• Max Capacity: 256 GB (64 GB per slot)
• Architecture: Dual-channel
• Type: Non-ECC, unbuffered DDR5

Supported Speeds:

• JEDEC: DDR5-4800 → 5600 MT/s
• Overclocked: Up to DDR5-8200+ MT/s

Ryzen 9000 OC Limits:

• 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 6000+ MT/s

Features:

• AMD EXPO™ support
• CUDIMM support (Clock Driver bypass mode only)*
• Single-sided DIMM latches

Integrated Graphics (CPU-dependent)

• HDMI™ 2.1: Up to 4K @ 60Hz
• DisplayPort 1.4: Up to 4K @ 60Hz

Expansion Slots

• PCI_E1 (CPU):
  • PCIe 5.0 x16 (Ryzen 9000 / 7000)
  • PCIe 4.0 x8 (Ryzen 8700 / 8600 / 8400)
  • PCIe 4.0 x4 (Ryzen 8500 / 8300)
• PCI_E2–E4 (Chipset):
  • 3 × PCIe 3.0 x1

Storage

M.2 Slots:

• M.2_1 (CPU):
  • PCIe 5.0 x4 (Ryzen 9000 / 7000)
  • PCIe 4.0 x4 (Ryzen 8000)
  • Supports 2280 / 2260
• M.2_2 (CPU):
  • PCIe 4.0 x4 (most CPUs)
  • Downgrades to x2 on Ryzen 8500 / 8300
  • Supports 2280 / 2260
• M.2_3 (Chipset):
  • PCIe 4.0 x2
  • Supports 2280

SATA:

• 4 × SATA 6Gb/s

RAID Support:

• SATA: RAID 0, 1, 10
• NVMe: RAID 0, 1, 5

Audio

• Codec: Realtek® ALC897
• Channels: 7.1-channel HD Audio

Networking

• Wired: Realtek® 8126VB 5GbE LAN

Wireless:

• Wi-Fi 7 (802.11be)
  • Tri-band (2.4 / 5 / 6 GHz)
  • Up to 2.9 Gbps
  • 160 MHz channels
• Bluetooth 5.4

USB Connectivity

Rear I/O:

• 1 × USB 10Gbps Type-C
• 1 × USB 10Gbps Type-A
• 2 × USB 5Gbps Type-A
• 4 × USB 2.0

Front Headers:

• 1 × USB 10Gbps Type-C
• 4 × USB 5Gbps Type-A
• 4 × USB 2.0

Internal Connectors

Power:

• 1 × 24-pin ATX
• 1 × 8-pin CPU
• 1 × 8-pin PCIe (for high-end GPUs)

Cooling:

• 1 × CPU fan header
• 1 × Pump/System fan combo
• 3 × System fan headers

Lighting:

• 3 × Addressable RGB Gen2 (5V, 3-pin)
• 1 × Standard RGB (12V, 4-pin)

Other:

• TPM 2.0 header
• Front panel & front audio headers
• COM port header
• Chassis intrusion header
• JDASH tuning controller header

Back Panel I/O

• HDMI™
• DisplayPort
• USB 10Gbps (Type-C + Type-A)
• 2 × USB 5Gbps Type-A
• 4 × USB 2.0
• 5G LAN (RJ-45)
• Wi-Fi / Bluetooth antenna connectors
• 3.5mm audio jacks
• Flash BIOS Button
• Clear CMOS Button

Diagnostics & Features

• 4 × EZ Debug LEDs (CPU, DRAM, VGA, BOOT)
• EZ Memory Detection LED (RAM troubleshooting)

Form Factor & OS

• Form Factor: micro-ATX (243.84 × 243.84 mm)
• Operating System: Windows® 11 (64-bit)