

· B840The MSI B840 GAMING PLUS WIFI is a mainstream ATX motherboard built on the AMD B840 chipset for the AM5 socket, specifically designed to support AMD Ryzen 9000, 8000, and 7000 series desktop processors. It features a 7+2+1 phase direct power delivery system on a high-grade 6-layer 2oz thickened copper PCB, paired with premium VRM cooling and extended heatsinks. The board supports four dual-channel DDR5 memory slots handling up to 256GB with extreme overclocked speeds exceeding 8000+ MT/s (OC). For storage and high-speed data transmission, the layout incorporates a primary steel-reinforced PCIe 4.0 x16 expansion slot, two Lightning Gen 4 x4 M.2 slots shielded by EZ M.2 Shield Frozr II thermal armor, and a rear USB 3.2 Gen 2 Type-C (10Gbps) port. Its next-generation wireless layout is driven by a native Wi-Fi 7 module capable of up to 5.8Gbps bandwidth, augmented by a Realtek 2.5G LAN port, Bluetooth 5.4, and easy-to-use DIY troubleshooting additions like EZ Debug LEDs and an EZ PCIe clip.



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| Form Factor | Socket AM5 |
|---|---|
| Brand & Model | MSI AMD B840 Motherboard (AMD B840 Chipset, Socket AM5 Platform) |
| Target Segment | Mainstream Desktop PCs, Office Workstations & System Integrator Builds |
| Processor Compatibility | AMD Ryzen 9000 / 8000 / 7000 Series Desktop Processors |
| Memory | AMD EXPO Technology, Non-ECC Un-buffered Memory, CUDIMM Support (Clock Driver bypass mode) |
|---|---|
| System Memory Architecture | 4 x DDR5 UDIMM Slots (Max Capacity: Up to 256 GB, Dual-Channel) |
| Speeds & Overclocking | DDR5 8000 - 5600 (OC) MT/s / 5600 - 4800 (JEDEC) MT/s (Ryzen 9000 Series 1DPC 1R up to 8000+ MT/s) |
| PCIe Slots | 5 x PCI-Express x16 Slots |
|---|
| PCI_E1 | PCIe 4.0 x16 (From CPU; supports x16 for Ryzen 9000/7000, x8 for Ryzen 8700/8600/8400, x4 for Ryzen 8500/8300) |
|---|---|
| PCI_E2 | PCIe 3.0 x1 (From Chipset) |
| PCI_E3 | PCIe 3.0 x1 (From Chipset) |
| PCI_E4 | PCIe 3.0 x4 (From Chipset) |
| PCI_E5 | PCIe 3.0 x1 (From Chipset) |
| M.2 Slots | 2 x M.2 Slots |
|---|---|
| Ports | 4 x SATA 6Gbps |
| M.2_1 (From CPU) | Up to PCIe 4.0 x4, supports 2280/2260 devices |
| M.2_2 (From CPU) | Up to PCIe 4.0 x4 (PCIe 3.0 x4 for Ryzen 8700/8600/8400, PCIe 3.0 x2 for Ryzen 8500/8300), supports 22110/2280/2260 devices |
| RAID Support | RAID 0 and RAID 1 for M.2 NVMe storage devices |
| Onboard Display Output | 1 x HDMI 2.1 (Supports 4K @ 60 Hz; requires CPU with integrated graphics) |
|---|---|
| Audio Subsystem | Realtek ALC897 7.1-Channel High Definition Audio |
| Networking | Realtek 8125BG 2.5G Ethernet LAN (2.5 Gbps) |
|---|---|
| Wireless LAN & Bluetooth | Pre-installed Wi-Fi 7 (802.11be, 320MHz, up to 5.8Gbps across 2.4GHz / 5GHz / 6GHz, MLO) + Bluetooth 5.4 |
| Rear Panel Connectivity | HDMI 2.1, 2.5G LAN, Wi-Fi/Bluetooth Antennas, Audio Jacks, 4x USB 2.0, 2x USB 5Gbps Type-A, 1x USB 10Gbps Type-A, 1x USB 10Gbps Type-C |
|---|---|
| Internal Connectors | 1x 24-pin ATX Power, 1x 8-pin CPU Power, 1x CPU Fan, 1x Combo Pump/System Fan, 4x System Fan, 1x EZ Conn-header (JAF_1), 2x Addressable V2 RGB (JARGB_V2), 1x Standard RGB (JRGB), TPM 2.0 Header, Front Panel Audio, Front USB Type-C & Type-A Headers |
| Features | 4 x EZ Debug LEDs |
|---|---|
| Operating System | Support for Windows 11 64-bit |
| Warranty | 3 Years Company Warranty |
|---|