| Chipset | AMD B850 |
| CPU | Supports AMD Ryzen™ 9000/ 8000/ 7000 Series Desktop Processors | Socket AM5 |
| 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* |
| * CUDIMM support and POR boot frequency may vary by CPU series, with manual overclocking available after boot. Certain CPUs may fail to boot, but future BIOS updates will improve compatibility. | • The DIMM slots on this motherboard have double-sided latches. | • Memory compatibility and supported speeds can vary depending on the CPU and memory configuration. For detailed information, please refer to the Memory Compatibility List available on the product’s Support page or visit https://www.msi.com/support/. |
| Onboard Graphics | 1x HDMI™ | Support HDMITM 2.1, maximum resolution of 4K 60Hz* | *Available only on processors featuring integrated graphics. Graphics specifications may vary depending on the CPU installed. |
| 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) |
| * PCI_E2, PCI_E3 & PCI_E4 share the bandwidth, PCI_E3 slot will run at x2 speed when installing devices in the PCI_E2 or PCI_E4 slot. |
| Audio | Realtek® ALC897 | 7.1-Channel High Definition Audio |
| 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) |
| *Please refer to the manual for M.2 SSD heatsink restrictions. |
| RAID | Supports RAID 0 and RAID 1 for M.2 NVMe storage devices |
| 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) |
| LAN | Realtek® 8126VB 5G LAN |
| 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 |
| 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 |
| * 6GHz band support may depend on every country’s regulations and Wi-Fi 7 will be ready in Windows 11 version 24H2. | ** The Bluetooth version may be updated, please refer to the Wi-Fi chipset vendor’s website for details. Bluetooth 5.4 will be ready in Windows 11 version 24H2. |
| LED FEATURE | 4x EZ Debug LED |
Dublin
PRO B850-P WIFI offers a simple design with a harmonious silver color scheme that perfectly matches both white and black PC builds. It is engineered with many exclusive features of MSI, a true Wi-Fi 7 with EZ Antenna, 5G LAN, PCIe 5.0 M.2 with EZ M.2 Shield Frozr II, and Supplemental PCIe Power, ready for the AMD Ryzen™ 9000 series processors.
Extended Heatsink
EZ Antenna with Magnetic Stand
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