# Motherboard MSI PRO B840M-P WIFI6E micro ATX, AMD B840, Socket AM5, DDR5, 4x DIMM, Wi‑Fi 6E, 2.5Gb LAN

**URL:** https://aio.lv/en/product--msi-7e77-001r--11487153
**Data updated:** 2026-01-21 11:11 (EET)
**Category:** Motherboards
**Manufacturer:** MSI
**Manufacturer code:** 7E77-001R
**EAN:** 4711377361804
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 131.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 109.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--msi-7e77-001r--11487153

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Wednesday | free |
| Pickup points | 22.06.2026 | 1.99 EUR |
| Courier delivery to door | 22.06.2026 | 4.99 EUR |

## Summary description

Micro ATX motherboard MSI PRO B840M-P WIFI6E with AMD B840 chipset and Socket AM5 support for AMD Ryzen 7000 series CPUs. Supports DDR5 memory in 4 DIMM slots up to 256 GB (dual-channel, up to 8000 MHz), two M.2 (2280) and four SATA III drives with RAID support. Integrated Wi‑Fi 6E (802.11ax) and Bluetooth 5.3, 2.5 Gigabit Ethernet, HDMI 2.1, multiple USB ports, Clear CMOS button, RGB headers and included antenna.

## Long description

PRO B840M-P WIFI6E offers a simple silver design that fits both white and black PC builds. This MSI PRO Series micro-ATX motherboard supports AMD Socket AM5 processors including Ryzen 7000, 8000 and 9000 series, and provides DDR5 memory support up to 256 GB, multiple storage options including M.2 and SATA III, plus advanced connectivity with Wi‑Fi 6E and 2.5 Gigabit Ethernet.
Advantages
The motherboard features a direct 7+2+1 digital power design with an 8‑pin CPU connector for stable power delivery under heavy loads. An optimized PCB and extended heatsink improve bandwidth, transfer reliability and thermal dissipation. High‑performance 7 W/mK MOSFET thermal pads and additional choke pads help maintain stability when all cores run at high speed. Built‑in Wi‑Fi 6E (with EZ Antenna) and 2.5G LAN provide high‑bandwidth, low‑latency network connectivity.
Suitable for
Building compact high-performance desktop PCs (micro‑ATX)
Productivity and multitasking workstations using AMD Ryzen 7000/8000/9000 series
Systems requiring fast networking with Wi‑Fi 6E or 2.5 Gigabit Ethernet
Storage‑heavy setups using multiple M.2 and SATA III drives
Key specifications
Processor socket: AMD Socket AM5 — supports Ryzen 7000, 8000, 9000 series
Chipset: AMD B840
Form factor: Micro ATX
Memory: 4 × DDR5 DIMM slots, maximum 256 GB
Storage: M.2 and SATA III support; up to 6 storage drives supported
LAN & wireless: 2.5 Gigabit Ethernet, Wi‑Fi 6E (802.11ax), Bluetooth 5.3
Audio: Realtek ALC897, 7.1 channels
BIOS: UEFI AMI 256 Mbit, ACPI 6.5
How to use
Install a compatible AMD Socket AM5 processor and populate up to four DDR5 memory modules according to the motherboard user manual. Connect storage devices to M.2 slots or SATA III ports and attach the 8‑pin CPU power connector and 24‑pin ATX power cable from a compatible PSU. Configure BIOS/UEFI settings as needed for boot order, memory profiles and device configuration. For wireless networking, attach the EZ Antenna and enable Wi‑Fi in the operating system or BIOS.
Usage recommendations
For optimal thermal performance, ensure good airflow in the chassis and secure the extended heatsink clearance. Use updated BIOS firmware and drivers from MSI for best compatibility with Ryzen 7000/8000/9000 series CPUs and to enable Wi‑Fi 6E functions.

## 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 | Black |

### 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 |

### 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 PRO B840M-P WIFI6E micro ATX motherboard cost, and is it available for purchase?

The price is 131.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 121 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 Wednesday 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can MSI PRO B840M-P WIFI6E micro ATX 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 PRO B840M-P WIFI6E micro ATX 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/11487153/66788843_large.webp