The B840 Gaming Plus WiFi is MSI’s mainstream B840 ATX offering, bringing full Wi-Fi 7 tri-band wireless with MLO (Multi-Link Operation) support, Realtek 2.5GbE LAN, and PCIe 4.0 platform performance to a full ATX form factor at an accessible price point. The 7+2+1 phase Direct CPU power design uses Core Boost technology with 7 W/mk MOSFET thermal pads and an Extended Heatsink with additional choke thermal pads — Frozr Guard thermal management is MSI’s approach to sustained power delivery efficiency at this VRM tier. CUDIMM support (clock-driven UDIMM) is a notable addition for boards at this price, allowing DDR5 memory with on-module clock buffers to reach higher stable frequencies. Both M.2 slots carry EZ M.2 Shield Frozr II heatsinks with tool-free latch clips for simple SSD installation and removal, and the PCIe 4.0 x16 primary slot features Steel Armor reinforcement. The rear I/O includes a Flash BIOS Button for firmware updates without CPU or RAM, and a Clear CMOS button for recovery — both useful for first-time platform builds.

The B840 chipset does not support CPU overclocking. Memory overclocking via EXPO profiles is supported up to DDR5-8000+ (OC). If CPU OC is needed, step up to a B850 board.

The 7+2+1 Direct VRM is best suited to 65W TDP processors for sustained workloads. Higher-TDP Ryzen 9 chips will run at stock, but sustained heavy all-core loads push this power stage to its limits.

Wi-Fi 7 features (including MLO and the 6 GHz band) require Windows 11 version 24H2 or later. Bluetooth 5.4 also requires Windows 11 24H2. On earlier Windows versions, the adapter operates at Wi-Fi 6E speeds.

Memory and Storage

Four DDR5 UDIMM slots support dual-channel operation up to 256 GB, with EXPO and XMP profiles reaching DDR5-8000+ (OC) in optimal configurations with Ryzen 9000. CUDIMM support in clock driver bypass mode is available — note that POR boot frequency and compatibility may vary by CPU series. Two M.2 slots are both CPU-connected at PCIe 4.0 x4: M2_1 supports 2280 and 2260, while M2_2 supports 22110, 2280, and 2260. Both are covered by EZ M.2 Shield Frozr II heatsinks. Four SATA 6Gb/s ports handle additional storage, with RAID 0/1/10 for SATA and RAID 0/1 for NVMe.

No PCIe Gen5 M.2 slot is present — the fastest M.2 tier is PCIe 4.0 x4 (64 Gb/s). For Gen5 NVMe speeds, a B850 board is required.

M2_2 drops from PCIe 4.0 x4 to PCIe 3.0 x4 with Ryzen 8700/8600/8400 processors, and further to PCIe 3.0 x2 with Ryzen 8500/8300. The primary GPU slot (PCI_E1) also drops from PCIe 4.0 x16 to x8 and x4 respectively with those Ryzen 8000 Phoenix variants.

Only two M.2 slots are present. Three-drive NVMe builds will need SATA for the additional drive.

Connectivity and I/O

The rear panel provides a well-specified USB stack for the price: one USB 10 Gbps Type-A, one USB 10 Gbps Type-C, two USB 5 Gbps Type-A, and four USB 2.0 — nine ports total. Only a single HDMI 2.1 (4K 60Hz) display output is available — there is no DisplayPort on the rear panel. Wi-Fi 7 (802.11be, 2.4/5/6 GHz, 320 MHz, MU-MIMO, MLO, 4KQAM, up to 5.8 Gbps) and Bluetooth 5.4 are handled by a pre-installed module in the M.2 Key-E slot, alongside Realtek 8125BG 2.5GbE LAN. Front panel headers include two USB 5 Gbps Type-A, one USB 5 Gbps Type-C, and four USB 2.0. Fan headers total six: one CPU, one combo fan/pump, and four system fan headers. RGB is covered by two Addressable V2 (ARGB) headers and one standard RGB LED header via Mystic Light, plus an EZ Conn header (JAF_1) for daisy-chain lighting. Four EZ Debug LEDs (CPU/DRAM/VGA/BOOT) provide boot diagnostics, and a Tuning Controller connector (JDASH) supports MSI’s external OC dashboard accessory.

No DisplayPort is present on this board — the sole display output is HDMI 2.1. Monitors requiring DisplayPort will need a discrete GPU.

The Wireless module occupies the M.2 Key-E slot — no additional wireless module can be installed.

Integrated display output (HDMI 2.1) requires a Ryzen processor with integrated Radeon graphics. Non-G Ryzen 7000/9000 CPUs require a discrete GPU.

Key Highlights

• AMD B840 chipset, Socket AM5 — no CPU overclocking
• Supports Ryzen 7000, 8000, and 9000 Series
• ATX form factor — 243.84 mm × 304.8 mm
• 7+2+1 phase Direct CPU power, Core Boost, Frozr Guard (7 W/mk thermal pads, Extended Heatsink)
• Single 8-pin ATX12V CPU power connector
• 4× DDR5 UDIMM slots, dual-channel, up to 256 GB, DDR5-8000+ (OC)
• EXPO and XMP support, CUDIMM support (clock driver bypass mode)
• 1× M.2 PCIe 4.0 x4 (CPU, 2280/2260, EZ M.2 Shield Frozr II) — M2_1
• 1× M.2 PCIe 4.0 x4 (CPU, 22110/2280/2260, EZ M.2 Shield Frozr II) — M2_2 (PCIe 3.0 with Ryzen 8000)
• 4× SATA 6Gb/s ports
• RAID 0/1/10 for SATA / RAID 0/1 for NVMe
• 1× PCIe 4.0 x16 (primary GPU, Steel Armor) + 3× PCIe 3.0 x1 + 1× PCIe 3.0 x4 (chipset)
• HDMI 2.1 (4K 60Hz) — only display output, no DisplayPort
• Realtek 8125BG 2.5GbE LAN
• Wi-Fi 7 (802.11be, 2.4/5/6 GHz, 320 MHz, MLO, MU-MIMO) + Bluetooth 5.4 — requires Windows 11 24H2
• Rear USB: Gen2 Type-A (10 Gbps) + Gen2 Type-C (10 Gbps) + 2× USB 5 Gbps Type-A + 4× USB 2.0
• Front USB: 2× USB 5 Gbps Type-A + USB 5 Gbps Type-C + 4× USB 2.0
• 1× CPU fan + 1× combo fan/pump + 4× system fan headers
• 2× ARGB V2 headers + 1× RGB header — Mystic Light
• 4× EZ Debug LEDs (CPU/DRAM/VGA/BOOT)
• Flash BIOS Button + Clear CMOS button — rear
• EZ Conn header (JAF_1) for daisy-chain lighting
• Tuning Controller connector (JDASH)
• COM port header, TPM 2.0 header, chassis intrusion header
• No PCIe Gen5 M.2, no DisplayPort, no CPU OC

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The PRO B840M-P WiFi6E brings MSI’s professional PRO series positioning to the B840 Micro-ATX tier, delivering a business and productivity-focused AM5 platform with Wi-Fi 6E, Realtek 2.5GbE, and a well-rounded USB stack in a compact 244 mm × 244 mm footprint. The 6-layer, 2oz copper PCB with 7 W/mk MOSFET thermal pads and Core Boost technology provides stable, sustained power delivery for everyday Ryzen builds and professional multi-core workloads. Both M.2 slots are CPU-connected at PCIe 4.0 x4 — a meaningful differentiator over boards that route the secondary M.2 through slower chipset lanes. CUDIMM support (clock driver bypass mode) is included for builders using next-generation memory modules. MSI’s Frozr AI Cooling auto-detects PWM/DC fan modes, and the Flash BIOS Button with Clear CMOS button on the rear panel makes servicing and first-boot preparation straightforward. Notably for a PRO series board, three ARGB and one RGB header are included — giving builders lighting control without stepping to the Gaming series.

The B840 chipset does not support CPU overclocking. Memory overclocking via EXPO profiles is supported up to DDR5-8000+ (OC). If CPU OC is a requirement, step up to a B850 board.

DIMM slots on this board have single-sided latches only — the standard dual-latch release mechanism is not present. Take care when seating and removing memory modules.

Memory and Storage

Four DDR5 UDIMM slots support dual-channel operation up to 256 GB, with EXPO profiles reaching DDR5-8000+ (OC) in optimal 1DPC 1R configurations with Ryzen 9000. CUDIMM support in clock driver bypass mode is available. Both M.2 slots are CPU-connected at PCIe 4.0 x4 (64 Gb/s): M2_1 and M2_2 both support 2280 and 2260 form factors. Four SATA 6Gb/s ports handle traditional drive storage, with RAID 0/1/10 for SATA and RAID 0/1 for NVMe.

Neither M.2 slot supports the 22110 extended form factor — both are limited to 2280 and 2260. If a 110mm enterprise or extended NVMe drive is required, a board with 22110 support is needed.

M2_2 drops from PCIe 4.0 x4 to PCIe 4.0 x2 with Ryzen 8500/8300 processors specifically. All other Ryzen 7000, 8000 (Phoenix 1), and 9000 variants run both M.2 slots at the full PCIe 4.0 x4 rate.

No PCIe Gen5 M.2 is present on this board — the fastest M.2 speed is PCIe 4.0 x4 (64 Gb/s). B850 is required for Gen5 NVMe.

Connectivity and I/O

The rear panel provides nine USB ports: one USB 10 Gbps Type-C, one USB 10 Gbps Type-A, two USB 5 Gbps Type-A, and four USB 2.0, alongside HDMI 2.1 (4K 60Hz), a Clear CMOS button, dual antenna connectors for Wi-Fi, and a Flash BIOS Button — no CPU or RAM required to update firmware. There is no DisplayPort on this board. Front panel USB headers cover two USB 5 Gbps Type-A, one USB 5 Gbps Type-C, and four USB 2.0. Realtek 8125D 2.5GbE handles wired networking. Wi-Fi 6E (802.11ax, 2.4/5/6 GHz, 160 MHz, MU-MIMO) and Bluetooth 5.3 are pre-installed in the M.2 Key-E slot. Fan headers total four: one CPU fan, one combo pump/system fan, and three system fan headers. Three Addressable V2 (ARGB) headers and one RGB LED header support Mystic Light. Four EZ Debug LEDs (CPU/DRAM/VGA/BOOT) plus an EZ Memory Detection LED assist boot troubleshooting.

Only HDMI 2.1 is available for iGPU display output — no DisplayPort is present on the rear panel. Monitors requiring DisplayPort input will need a discrete GPU.

No onboard display output other than HDMI. A discrete GPU is required for non-G Ryzen 7000/9000 CPUs regardless.

Key Highlights

• AMD B840 chipset, Socket AM5 — no CPU overclocking
• Supports Ryzen 7000, 8000, and 9000 Series
• Micro-ATX form factor — 243.84 mm × 243.84 mm
• Core Boost, 6-layer 2oz copper PCB, 7 W/mk MOSFET thermal pads
• Single 8-pin ATX12V CPU power connector
• 4× DDR5 UDIMM slots, dual-channel, up to 256 GB, DDR5-8000+ (OC)
• Single-sided DIMM latches
• EXPO support, CUDIMM support (clock driver bypass mode)
• 1× M.2 PCIe 4.0 x4 (CPU, 64 Gb/s, 2280/2260) — M2_1
• 1× M.2 PCIe 4.0 x4 (CPU, 64 Gb/s, 2280/2260) — M2_2 (x2 with Ryzen 8500/8300)
• No 22110 M.2 support, no Gen5 M.2
• 4× SATA 6Gb/s ports
• RAID 0/1/10 for SATA / RAID 0/1 for NVMe
• 1× PCIe 4.0 x16 (primary GPU, Steel Armor) + 1× PCIe 3.0 x1 (chipset)
• HDMI 2.1 (4K 60Hz) only — no DisplayPort
• Realtek 8125D 2.5GbE LAN
• Wi-Fi 6E (802.11ax, 2.4/5/6 GHz, 160 MHz, MU-MIMO) + Bluetooth 5.3
• 9× rear USB: Gen2 Type-C (10 Gbps) + Gen2 Type-A (10 Gbps) + 2× Gen1 Type-A (5 Gbps) + 4× USB 2.0
• Front USB: USB 5 Gbps Type-C header + 2× USB 5 Gbps Type-A + 4× USB 2.0
• 1× CPU fan + 1× combo pump/sys fan + 3× system fan headers — Frozr AI Cooling
• 3× ARGB V2 headers + 1× RGB header — Mystic Light
• 4× EZ Debug LEDs + 1× EZ Memory Detection LED
• Flash BIOS Button + Clear CMOS button — rear
• Tuning Controller connector (JDASH), COM port header, TPM 2.0 header, chassis intrusion header
• Realtek ALC897 7.1-Ch HD Audio, Audio Boost

Proudly sold by the Ringwood Digital Store.

The B840M D2H is Gigabyte’s most accessible B840 Micro-ATX board, offering the AM5 platform and DDR5 memory support with a deliberately minimal feature set aimed at straightforward everyday builds. The 5+2+2 phase digital VRM handles mainstream Ryzen loads cleanly, Realtek 2.5GbE LAN punches above the typical entry-level expectation by providing faster-than-Gigabit wired networking out of the box, and Q-Flash Plus enables BIOS updates without a CPU or RAM installed. The inclusion of two ARGB headers and an RGB header gives builders some lighting flexibility despite the board’s budget positioning, and the debug LEDs provide a useful boot-failure diagnostic tool.

The B840 chipset does not support CPU overclocking. Memory overclocking via AMD EXPO and XMP profiles is supported up to DDR5-7600 (OC) — a lower ceiling than most other B840 boards. If higher memory OC speeds or CPU overclocking are needed, the B840M Aorus Elite WiFi6E or a B850 board are the appropriate steps up.

The 5+2+2 VRM is best matched to 65W TDP processors under sustained workloads. 105W CPUs run at stock without issue, but sustained high-TDP loads are outside the comfort zone of this power stage.

Memory and Storage

Two DDR5 DIMM slots support dual-channel operation up to 128 GB, with AMD EXPO and XMP profiles reaching DDR5-7600 (OC). M2A_CPU is CPU-connected at PCIe 4.0 x4 (64 Gb/s) and supports both 2580 and 2280 form factors. M2C_SB is chipset-connected and runs at PCIe 3.0 x2 (16 Gb/s) in 2280 form factor only — a notably limited bandwidth compared to chipset M.2 slots on higher-tier boards. Four SATA 6Gb/s ports handle additional storage. RAID 0/1/10 is supported for SATA; NVMe RAID supports 0/1/5/10 on Ryzen 9000 (RAID 5 requires Ryzen 9000) and RAID 0/1/10 on Ryzen 7000/8000.

M2C_SB runs at PCIe 3.0 x2 (16 Gb/s) — significantly slower than the PCIe 4.0 x4 standard found on most competing boards. This slot is best used for secondary or low-demand NVMe storage rather than a primary high-performance SSD.

Only two DIMM slots are present — maximum 128 GB across two matched sticks. Builders who need four DIMM slots or more capacity should look at the B840M Aorus Elite WiFi6E (4× DIMM, 256 GB).

Connectivity and I/O

The rear panel is straightforward: two USB 3.2 Gen1 Type-A (5 Gbps, CPU), four USB 2.0 Type-A (CPU+hub), a PS/2 keyboard/mouse combo port, one HDMI 2.1 port, and the Q-Flash Plus button alongside the Realtek 2.5GbE RJ-45 port. There is no DisplayPort, no USB Type-C on the rear, and no Wi-Fi. Front panel connectivity is limited to a USB 3.2 Gen1 header (2 ports) and two USB 2.0 headers (4 ports) — no front USB Type-C header. Fan headers consist of a CPU fan, CPU fan/pump, and a single system fan header — three total with Smart Fan 6 PWM/DC control and FAN STOP. RGB is supported via two Addressable Gen2 (ARGB) headers and one standard RGB LED header via RGB Fusion 2.0.

Only one display output is present — HDMI 2.1 only. There is no DisplayPort. Monitors that only accept DisplayPort input will require a discrete GPU.

No USB Type-C is present on this board anywhere — neither rear nor as a front panel header.

No onboard Wi-Fi and no M.2 Key E slot for a wireless module. A USB or PCIe adapter is required for wireless connectivity.

Only three fan headers are present, including just one system fan header. Builds with multiple chassis fans will need a fan splitter or hub.

Integrated display output (HDMI) requires a Ryzen processor with integrated Radeon graphics. Non-G Ryzen 7000/9000 CPUs require a discrete GPU.

Key Highlights

• AMD B840 chipset, Socket AM5 — no CPU overclocking
• Supports Ryzen 7000, 8000, and 9000 Series
• Micro-ATX form factor
• 5+2+2 phase digital VRM
• Single 8-pin ATX12V CPU power connector
• 2× DDR5 DIMM slots, dual-channel, up to 128 GB, DDR5-7600 (OC)
• AMD EXPO and XMP memory profile support
• 1× M.2 PCIe 4.0 x4 (CPU, 64 Gb/s, 2580/2280) — M2A_CPU
• 1× M.2 PCIe 3.0 x2 (chipset, 16 Gb/s, 2280 only) — M2C_SB
• 4× SATA 6Gb/s ports
• RAID 0/1/5/10 NVMe (Ryzen 9000) / 0/1/10 NVMe (Ryzen 7000/8000) / 0/1/10 SATA
• 1× PCIe 4.0 x16 (primary GPU) + 1× PCIe 3.0 x16 (x4 mode, chipset)
• HDMI 2.1 (4K 60Hz) only — no DisplayPort
• Realtek 2.5GbE LAN
• No onboard Wi-Fi — wired-only, no M.2 Key E slot
• 6× rear USB: 2× Gen1 Type-A (5 Gbps) + 4× USB 2.0 Type-A — no USB Type-C
• PS/2 keyboard/mouse combo port — rear
• Front USB 3.2 Gen1 header (2 ports) + 2× USB 2.0 headers (4 ports) — no front USB Type-C
• 1× CPU fan + 1× CPU fan/pump + 1× system fan header — Smart Fan 6, FAN STOP
• 2× Addressable Gen2 (ARGB) headers + 1× RGB LED header — RGB Fusion 2.0
• Debug boot LEDs (CPU/DRAM/VGA/BOOT)
• EZ-Latch on PCIe x16 slot
• Q-Flash Plus (BIOS update without CPU/RAM)
• SPI TPM header
• Realtek ALC897 HD Audio

Proudly sold by the Ringwood Digital Store.