Motherboard // MSI
MSI PRO B840-P WIFI Motherboard
Technical specification
AMD B840 ATX Motherboard for AM5 — 7+2+1 P-PAK Power System, 6-layer 2oz copper PCB, Wi-Fi 7 (320MHz, 5.8Gbps), 2.5G LAN, USB 10Gbps, Dual PCIe 4.0 M.2 with EZ M.2 Shield Frozr II, DDR5 8000+ OC, Silver Design, Ryzen 9000 / 8000 / 7000 Ready.
The MSI PRO B840-P WIFI is the flagship ATX board on AMD's B840 chipset in the PRO series — combining a clean harmonious silver colour scheme with full Wi-Fi 7 (320MHz, 5.8Gbps, MLO, 4KQAM, BT 5.4), Realtek 2.5G LAN, USB 10Gbps rear Type-C, and two PCIe 4.0 x4 M.2 slots both with EZ M.2 Shield Frozr II. Its Direct 7+2+1 P-PAK Power System on a 6-layer 2oz copper PCB with Steel Armor PCIe slot and High-Efficiency Mode DDR5 tuning makes it the most capable B840 PRO ATX option for budget Ryzen 9000 builds.
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>CPU Support: AMD Ryzen 9000 / 8000 / 7000 Series, Socket AM5
>Power Delivery: Direct 7+2+1 P-PAK Power System, 1x 8-pin CPU connector, Core Boost, Memory Boost, 6-layer 2oz copper PCB
>Storage: 2x M.2 — M.2_1: PCIe 4.0 x4 (CPU, 2280/2260); M.2_2: PCIe 4.0 x4 (CPU, 22110/2280/2260, Ryzen 9000/7000; PCIe 3.0 x4 Ryzen 8700/8600/8400; PCIe 3.0 x2 Ryzen 8500/8300); 4x SATA 6G — EZ M.2 Shield Frozr II on both
>Connectivity: Wi-Fi 7 (2.4/5/6GHz, 320MHz, up to 5.8Gbps, MU-MIMO, MLO, 4KQAM, 802.11be), Bluetooth 5.4, Realtek 8125D 2.5G LAN
>USB: Rear — 4x USB 2.0, 2x USB 5Gbps Type-A, 1x USB 10Gbps Type-A, 1x USB 10Gbps Type-C; Front — 4x USB 2.0, 2x USB 5Gbps Type-A, 1x USB 5Gbps Type-C
>PCIe: PCI_E1: PCIe 4.0 x16 (CPU, Steel Armor); PCI_E2: PCIe 3.0 x16 (Chipset); PCI_E3/PCI_E4/PCI_E5: PCIe 3.0 x1 (Chipset) — 5 slots total
>Audio: Realtek ALC897, 7.1-CH, Audio Boost, up to 192kHz
| Specification | Details |
|---|---|
| Chipset | AMD B840 |
| Socket | AM5 |
| Form Factor | ATX (304.8 x 243.84 mm), 6-layer 2oz copper PCB |
| Memory | 4x DDR5 UDIMM, up to 256GB; DDR5 8000–5600 (OC) / 5600–4800 (JEDEC) MT/s; 1DPC 1R max 8000+ MT/s / 1DPC 2R max 6400+ MT/s / 2DPC 1R max 6400+ MT/s / 2DPC 2R max 5600+ MT/s OC; Single-sided latches |
| Memory Standard | AMD EXPO, A-XMP, CUDIMM (bypass mode), Dual Channel, Non-ECC Unbuffered, High-Efficiency Mode |
| PCIe Slots | PCI_E1: PCIe 4.0 x16 (CPU, Steel Armor); PCI_E2: PCIe 3.0 x16 (Chipset); PCI_E3/E4/E5: PCIe 3.0 x1 (Chipset) — 5 slots total |
| M.2 Slots | M.2_1: PCIe 4.0 x4 (CPU, 2280/2260); M.2_2: PCIe 4.0 x4 (CPU, 22110/2280/2260) — EZ M.2 Shield Frozr II on both; No PCIe 5.0 M.2 (B840 chipset) |
| SATA | 4x SATA 6G | RAID 0, 1; M.2 NVMe RAID 0, 1 |
| LAN | Realtek 8125D 2.5G LAN |
| Wireless | Wi-Fi 7 (2.4/5/6GHz, 320MHz, up to 5.8Gbps, MU-MIMO, MLO, 4KQAM, 802.11be), Bluetooth 5.4, EZ Antenna |
| Rear USB | 4x USB 2.0, 2x USB 5Gbps Type-A, 1x USB 10Gbps Type-A, 1x USB 10Gbps Type-C |
| Front USB Headers | 4x USB 2.0, 2x USB 5Gbps Type-A, 1x USB 5Gbps Type-C |
| Video Output | 1x HDMI 2.1 (4K@60Hz) — iGPU only |
| Audio | Realtek ALC897, Audio Boost, 7.1-CH, up to 192kHz |
| Fan Headers | 1x CPU Fan, 1x Combo Fan (Pump/Sys), 4x System Fan, Smart Fan 6 |
| RGB | 2x ARGB V2 headers, 1x RGB header, 4x EZ Debug LED |
| Color Scheme | Silver — compatible with white and black builds |
| Extras | EZ M.2 Shield Frozr II (both slots), EZ M.2 Clip II, EZ PCIe Clip II, EZ Antenna, Flash BIOS Button, Clear CMOS, Click BIOS 5, Tuning Controller (JDASH), Steel Armor PCIe, metal backplate |
| OS Support | Windows 11 64-bit |
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