Description
AMD B850 mATX Motherboard for AM5 — 7+2+1 Phase VRM, P-PAK, 6-layer 2oz copper PCB, Wi-Fi 7 (160MHz, 2.9Gbps), 5G LAN, USB 10Gbps, PCIe 5.0 M.2 Gen5, DDR5 8200+ OC, 2x DDR5 Slots, Ryzen 9000 / 8000 / 7000 Ready.
The MSI B850M GAMING WIFI is a compact, cost-effective mATX entry into the B850 ecosystem — delivering Wi-Fi 7 (160MHz, 2.9Gbps, MLO, 4KQAM) and Realtek 5G LAN in a small 226 x 243mm footprint. Built with a Direct 7+2+1 P-PAK Power System on a 6-layer 2oz copper PCB with M.2 Shield Frozr and Frozr Guard extended heatsinks, it offers a single 8-pin CPU connector, two DDR5 slots up to 128GB, one PCIe 5.0 x4 M.2, one PCIe 4.0 x4 M.2, front USB 10Gbps Type-C, and dual HDMI 2.1 + DisplayPort 1.4 video — the leanest B850 gaming mATX board with modern connectivity.
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>CPU Support: AMD Ryzen 9000 / 8000 / 7000 Series, Socket AM5
>Power Delivery: 7+2+1 P-PAK Power System, 1x 8-pin CPU connector, Core Boost, Memory Boost, 6-layer 2oz copper PCB, 7W/mK MOSFET thermal pads, choke thermal pads
>Storage: 2x M.2 — M.2_1: PCIe 5.0 x4 (CPU, 2280/2260, Ryzen 9000/7000; PCIe 4.0 x4 Ryzen 8000); M.2_2: PCIe 4.0 x4 (CPU, 2280/2260; PCIe 4.0 x2 Ryzen 8500/8300); 4x SATA 6G — M.2 Shield Frozr
>Connectivity: Wi-Fi 7 (2.4/5/6GHz, 160MHz, up to 2.9Gbps, MU-MIMO, MLO, 4KQAM), Bluetooth 5.4, Realtek 8126 5G LAN
>USB: Rear — 2x USB 2.0, 3x USB 5Gbps Type-A, 1x USB 5Gbps Type-C; Front — 4x USB 2.0, 2x USB 5Gbps Type-A, 1x USB 10Gbps Type-C
>PCIe: PCI_E1: PCIe 5.0 x16 (CPU, Ryzen 9000/7000; x8 Ryzen 8700/8600/8400; x4 Ryzen 8500/8300); PCI_E2: PCIe 4.0 x4 (Chipset)
>Audio: Realtek ALC897, 7.1-CH, Audio Boost, up to 192kHz
| Specification | Details |
|---|---|
| Chipset | AMD B850 |
| Socket | AM5 |
| Form Factor | mATX (226 x 243.84 mm), 6-layer 2oz copper PCB |
| Memory | 2x DDR5 UDIMM, up to 128GB; DDR5 8200–5600 (OC) / 5600–4800 (JEDEC) MT/s; 1DPC 1R max 8200+ MT/s / 1DPC 2R max 8000+ MT/s OC; Single-sided latches |
| Memory Standard | AMD EXPO, A-XMP, CUDIMM (bypass mode), Dual Channel, Non-ECC Unbuffered |
| PCIe Slots | PCI_E1: PCIe 5.0 x16 (CPU); PCI_E2: PCIe 4.0 x4 (Chipset) |
| M.2 Slots | M.2_1: PCIe 5.0 x4 (CPU, 2280/2260); M.2_2: PCIe 4.0 x4 (CPU, 2280/2260); M.2 Shield Frozr |
| SATA | 4x SATA 6G | RAID 0, 1, 10; M.2 NVMe RAID 0, 1 |
| LAN | Realtek 8126 5G LAN |
| Wireless | Wi-Fi 7 (2.4/5/6GHz, 160MHz, up to 2.9Gbps, MU-MIMO, MLO, 4KQAM), Bluetooth 5.4 |
| Rear USB | 2x USB 2.0, 3x USB 5Gbps Type-A, 1x USB 5Gbps Type-C |
| Front USB Headers | 4x USB 2.0, 2x USB 5Gbps Type-A, 1x USB 10Gbps Type-C |
| Video Output | 1x HDMI 2.1 (4K@60Hz) + 1x DisplayPort 1.4 (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), 2x System Fan, Smart Fan 6 |
| RGB | 3x ARGB V2 headers, 1x RGB header, 4x EZ Debug LED, 1x EZ Memory Detection LED |
| Extras | EZ M.2 Clip II, EZ PCIe Clip II, EZ Conn header, EZ Antenna, Flash BIOS Button, Click BIOS 5, M.2 Shield Frozr, Frozr Guard heatsink, metal backplate |
| OS Support | Windows 11 64-bit |

