Motherboard // MSI
MSI B840M GAMING PLUS WIFI6E Motherboard
Technical specification
AMD B840 mATX Motherboard for AM5 — Wi-Fi 6E (160MHz, 2.4Gbps), 2.5G LAN, USB 10Gbps, Dual PCIe 4.0 M.2, DDR5 8000+ OC, 4x DDR5 Slots up to 256GB, EZ DIY Suite, Ryzen 9000 / 8000 / 7000 Ready.
The MSI B840M GAMING PLUS WIFI6E is the top gaming mATX on AMD's B840 chipset — delivering Wi-Fi 6E (tri-band 160MHz, 2.4Gbps, MU-MIMO, BT 5.3), Realtek 2.5G LAN, and USB 10Gbps rear Type-A and Type-C in a full 4-slot 256GB DDR5 mATX layout. It features dual PCIe 4.0 x4 CPU M.2 slots (2280/2260), a PCIe 4.0 x16 CPU primary slot, and the full EZ DIY toolkit including EZ Conn header, EZ Debug LED, and Flash BIOS Button — a well-rounded value mATX option for budget Ryzen 9000 gaming systems.
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>CPU Support: AMD Ryzen 9000 / 8000 / 7000 Series, Socket AM5
>Power Delivery: 1x 8-pin CPU connector, Core Boost, Memory Boost
>Storage: 2x M.2 — M.2_1: PCIe 4.0 x4 (CPU, 2280/2260); M.2_2: PCIe 4.0 x4 (CPU, 2280/2260); 4x SATA 6G | RAID 0, 1, 10
>Connectivity: Wi-Fi 6E (2.4/5/6GHz, 160MHz, up to 2.4Gbps, MU-MIMO, 802.11ax), Bluetooth 5.3, 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, x8 Ryzen 8700/8600/8400, x4 Ryzen 8500/8300); PCI_E2: PCIe 3.0 x4 (Chipset)
>Audio: Realtek ALC897, 7.1-CH, Audio Boost, up to 192kHz
| Specification | Details |
|---|---|
| Chipset | AMD B840 |
| Socket | AM5 |
| Form Factor | mATX (243.84 x 243.84 mm) |
| 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 |
| Memory Standard | AMD EXPO, A-XMP, CUDIMM (bypass mode), Dual Channel, Non-ECC Unbuffered |
| PCIe Slots | PCI_E1: PCIe 4.0 x16 (CPU); PCI_E2: PCIe 3.0 x4 (Chipset) |
| M.2 Slots | M.2_1: PCIe 4.0 x4 (CPU, 2280/2260); M.2_2: PCIe 4.0 x4 (CPU, 2280/2260); No PCIe 5.0 M.2 (B840 chipset) |
| SATA | 4x SATA 6G | RAID 0, 1, 10 |
| LAN | Realtek 8125D 2.5G LAN |
| Wireless | Wi-Fi 6E (2.4/5/6GHz, 160MHz, up to 2.4Gbps, MU-MIMO, 802.11ax), Bluetooth 5.3 |
| 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), 3x System Fan, Smart Fan 6 |
| RGB | 3x ARGB V2 headers, 1x RGB header, 4x EZ Debug LED, 1x EZ Memory Detection LED |
| Extras | EZ Conn header (JAF_1), EZ Debug LED, Flash BIOS Button, Tuning Controller (JDASH), Click BIOS 5, AI LAN Manager, metal backplate |
| OS Support | Windows 11 64-bit |
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Is this genuine, warranted stock?+
Yes — authorised MSI stock with full brand warranty, GST invoice, and serial tracking.
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