# Motherboard MSI B840M GAMING PLUS WIFI6E microATX, Socket AM5, DDR5 up to 256GB, Wi‑Fi 6E, 2.5GbE, M.2 x2, HDMI 2.1

**URL:** https://aio.lv/en/product--msi-b840m-gaming-plus-wifi6e--11491267
**Data updated:** 2026-01-21 11:11 (EET)
**Category:** Motherboards
**Manufacturer:** MSI
**Manufacturer code:** B840M GAMING PLUS WIFI6E
**EAN:** 4711377361811
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 115.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 95.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--msi-b840m-gaming-plus-wifi6e--11491267

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Monday | free |
| Pickup points | 02.07.2026 | 1.89 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

Micro ATX motherboard MSI B840M GAMING PLUS WIFI6E for Socket AM5 processors (AMD Ryzen 7000 series). Supports DDR5 memory in 4 DIMM slots up to 256 GB and dual-channel, PCIe 4.0 M.2 x2, SATA III (4 ports) and RAID 10 support. Integrated Wi‑Fi 6E and Bluetooth 5.3, Realtek 2.5GbE LAN, HDMI 2.1, 7.1 audio and multiple USB ports for gaming and productivity builds.

## Long description

The MSI B840M GAMING PLUS WIFI6E is a micro ATX motherboard for Socket AM5 systems, engineered for AMD Ryzen™ 7000 / 8000 / 9000 series processors. It supports DDR5 memory up to 256 GB across four DIMM slots, provides high-speed storage options with multiple M.2 and SATA III ports (RAID 0/1/10), and delivers modern connectivity including Realtek 2.5 Gigabit Ethernet and integrated Wi‑Fi 6E (802.11ax) with Bluetooth 5.3. The board includes an optimized PCB, extended heatsinks and reinforced thermal solutions to maintain stable performance under heavy load while offering EZ DIY features for easier installation.
Advantages
The motherboard combines a 7+2+1 P-PAK digital power design, an 8-pin CPU power connector and a multi-layer PCB with thickened copper to support sustained high-frequency CPU and memory operation. Integrated Wi‑Fi 6E and 2.5G LAN provide low-latency, high-bandwidth networking suitable for gaming and multimedia tasks. Thermal enhancements such as extended heatsinks, MOSFET thermal pads rated 7W/mK, additional choke pads and M.2 Shield Frozr II improve heat dissipation and protect storage drives during prolonged use. EZ M.2 Clip II, EZ PCIe Clip II and EZ Antenna simplify component installation and maintenance.
Suitable for
Gaming PCs based on AMD Ryzen™ 7000 / 8000 / 9000 series
Content creation and productivity rigs requiring fast storage and networking
Compact micro ATX builds that need modern connectivity (Wi‑Fi 6E, 2.5GbE)
Upgradable systems with DDR5 memory and PCIe 4.0 devices
Key specifications
Form factor: Micro ATX
Chipset: AMD B840
CPU support: Socket AM5 — AMD Ryzen™ 7000 / 8000 / 9000 Series
Memory: DDR5, 4 DIMM, dual channel, up to 256 GB, support for DDR5 8000+ MT/s (OC)
Power design: 7+2+1 digital power phases, 8-pin CPU power connector, Core Boost
Expansion: PCIe 4.0 x16 slot, Lightning Gen4 x4 M.2
Storage: M.2 (with M.2 Shield Frozr), SATA III ports, RAID 0/1/10 support
Network: Realtek 2.5 Gigabit Ethernet, Wi‑Fi 6E (802.11ax), Bluetooth 5.3
Audio: Realtek ALC897, 7.1 channels
BIOS: UEFI AMI, 256 Mbit
Supported drives: up to 6 storage drives
How to use
Install the MSI B840M GAMING PLUS WIFI6E into a compatible micro ATX case and connect a Socket AM5 compatible AMD Ryzen processor following standard anti-static procedures. Populate DDR5 memory modules across the DIMM slots for dual-channel operation and install storage devices into M.2 or SATA connectors; enable RAID in UEFI if required. Connect the 8-pin CPU power cable and additional system power connectors, attach front-panel and peripheral headers, and set up the Wi‑Fi antenna. Use the UEFI BIOS to configure memory profiles (XMP/EXPO), boot priorities and fan/thermal controls. Update MSI Center and BIOS as needed for the latest drivers and AI-assisted features.
Usage recommendations
For stable long-term performance, use quality DDR5 modules matched in pairs for dual-channel operation, ensure adequate case airflow to assist the extended heatsinks and M.2 Shield Frozr, and keep the BIOS and network/Wi‑Fi drivers up to date. When installing high-power CPUs or multiple M.2 SSDs, verify that the 8-pin CPU power connector is securely attached and consider using a case with sufficient cooling to maintain optimal temperatures.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | Micro ATX |
| Motherboard chipset | AMD B840 |
| Component for | PC |
| Audio output channels | 7.1 |
| Windows operating systems supported | Windows 11 x64 |
| Motherboard chipset family | AMD |

| Feature | Value |
|---|---|
| Product colour | White |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | AMD |
| Processor socket | Socket AM5 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 4 |
| Maximum internal memory | 256 GB |
| Supported memory types | DDR5-SDRAM |
| Supported memory clock speeds | 5600, 4800 |
| Memory channels | Dual-channel |
| Memory slots type | DIMM |
| Supported memory clock speed (max) | 8000 MHz |
| ECC сompatibility | non-ECC |

### Expansion slots

| Feature | Value |
|---|---|
| PCI Express x16 slots | 2 |
| Number of M.2 (M) slots | 2 |
| 1st M.2 largest key size | 2280 |
| 2nd M.2 largest key size | 2280 |
| 1st M.2 highest PCI Express generation | 4.0 |
| 2nd M.2 highest PCI Express generation | 4.0 |

### Graphics

| Feature | Value |
|---|---|
| On-board graphics card | No |

### Network

| Feature | Value |
|---|---|
| Bluetooth version | 5.3 |
| Ethernet LAN | Yes |
| Bluetooth | Yes |
| Wi-Fi | Yes |
| Ethernet interface type | 2.5 Gigabit Ethernet |
| Top Wi-Fi standard | Wi-Fi 6E (802.11ax) |

### Internal I/O

| Feature | Value |
|---|---|
| USB 2.0 connectors | 4 |
| Number of chassis fan connectors | 5 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
| Number of SATA III connectors | 4 |
| USB 3.2 Gen 2 (3.1 Gen 2) connectors | 1 |
| Total number of SATA connectors | 4 |
| RGB LED pin header | Yes |
| Number of RGB LED pin headers | 3 |
| Number of CPU fan connectors | 1 |
| Number of water pump connectors | 1 |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| USB 2.0 ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |

### Storage controllers

| Feature | Value |
|---|---|
| RAID levels | 1, 10 |
| Supported storage drive types | HDD & SSD |
| RAID support | Yes |
| Number of storage drives supported | 6 |
| Supported storage drive interfaces | Micro SATA III, M.2 |

### BIOS

| Feature | Value |
|---|---|
| BIOS memory size | 256 Mbit |
| BIOS type | UEFI AMI |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 243.84 mm |
| Depth | 243.84 mm |

### Other features

| Feature | Value |
|---|---|
| Number of HDDs supported | 4 |
| Supported processor sockets | Socket AM5 |
| Wi-Fi standards | Wi-Fi 4 (802.11n), 802.11g, 802.11b, 802.11a, Wi-Fi 6E (802.11ax), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac) |
| Audio chip | Realtek ALC897 |

## FAQ

### How much does the MSI B840M GAMING PLUS WIFI6E microATX Motherboard cost, and is it available for purchase?

The price is 115.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 300 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Monday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can MSI B840M GAMING PLUS WIFI6E microATX Motherboard be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All MSI products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized MSI service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: motherboard form factor, motherboard chipset, component for, processor socket, number of memory slots, maximum internal memory, supported memory types, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for MSI B840M GAMING PLUS WIFI6E microATX Motherboard?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11491267/66889689_large.webp