# Motherboard MSI PRO B850M-A WIFI PZ Micro-ATX Socket AM5 DDR5, 4 DIMM, 256GB, Wi‑Fi 7, 5Gb Ethernet

**URL:** https://aio.lv/en/product--msi-pro-b850m-a-wifi-pz--11686467
**Data updated:** 2026-02-04 15:34 (EET)
**Category:** Motherboards
**Manufacturer:** MSI
**Manufacturer code:** PRO B850M-A WIFI PZ
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 205.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 169.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--msi-pro-b850m-a-wifi-pz--11686467

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Monday | free |
| Pickup points | 09.07.2026 | 1.89 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

MSI PRO B850M-A WIFI PZ is a micro-ATX motherboard for AMD Socket AM5 processors, compatible with Ryzen 7000/8000/9000 series. It supports DDR5 memory across 4 DIMM slots up to 256 GB, offers one PCIe x16 slot, M.2 and SATA storage with RAID 0/1/10, built-in Wi‑Fi 7 and 5 Gbps Ethernet for fast networking and modern connectivity.

## Long description

MSI PRO B850M-A WIFI PZ is a micro-ATX motherboard for AMD Socket AM5 systems designed to fit white or silver-themed PC builds. It supports AMD Ryzen 7000, 8000 and 9000 series processors, four DDR5 memory slots up to 256 GB, one reinforced PCIe x16 slot with PCIe 5.0 SMT support, multiple M.2 and SATA storage options with RAID capability, integrated Wi‑Fi 7 and 5 Gbps Ethernet, and an innovative back-connect layout that relocates many connectors to the rear of the board for cleaner cable routing.
Advantages
The back-connect design simplifies cable management and produces a neater internal appearance. Built with a direct 8+2+1 digital power stage, reinforced Steel Armor PCIe slot and optimized multi-layer PCB, the board is prepared for demanding workloads. Built-in features such as EZ PCIe Clip II for one-finger GPU removal, pre-installed I/O shield, EZ Antenna, onboard diagnostic LEDs and broad storage and networking support make installation, troubleshooting and future upgrades straightforward.
Suitable for
Home and office productivity PCs that require stable multi-core performance
Compact workstations or white-themed micro-ATX builds
Systems needing fast storage and networking (NVMe M.2 and 5 Gbps Ethernet / Wi‑Fi 7)
Key specifications
Form factor: Micro-ATX
Socket: AMD AM5; compatible with Ryzen 7000 / 8000 / 9000 series
Chipset: AMD B850
Memory: 4× DDR5 DIMM slots, up to 256 GB, dual channel, supports DDR5 8200+ MT/s (OC)
Power design: Direct 8+2+1 digital power stages with 8+4-pin CPU power connectors
Expansion: 1× reinforced PCIe x16 slot with PCIe 5.0 SMT support
Storage: Multiple M.2 slots (PCIe Gen4/Gen5 capable) and SATA ports; RAID support for M.2 and SATA drives
Networking: Integrated Wi‑Fi 7 (802.11be) and 5 Gbps Ethernet
Audio: Multi-channel onboard audio (7.1)
BIOS: UEFI AMI with ACPI support
How to use
Install the motherboard into a compatible micro-ATX chassis and connect the AM5 CPU, DDR5 memory modules across the recommended slots, and required storage devices. Use the relocated rear connectors for power, CPU power, fan headers and SATA to streamline cable routing behind the motherboard tray. Attach the included EZ Antenna and connect network and peripheral devices. When installing a graphics card, press the EZ PCIe Clip II to release or secure the card with a single finger. Power on and configure UEFI settings as needed for memory profiles, boot order and RAID configuration.
Usage recommendations
For stable high-load operation, pair the board with quality DDR5 modules and a compatible cooling solution connected to the dedicated pump-fan header; enable proper BIOS power and memory settings and verify firmware updates via MSI utilities for optimal compatibility with Ryzen 8000/9000 series processors.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | Micro ATX |
| Motherboard chipset | AMD B850 |
| 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 | 6000, 6400 |
| Memory channels | Dual-channel |
| Memory slots type | DIMM |
| Supported memory clock speed (max) | 8200 MHz |
| ECC сompatibility | non-ECC |

### Expansion slots

| Feature | Value |
|---|---|
| PCI Express x16 slots | 1 |
| PCI Express x4 slots | 1 |
| PCI Express x16 (Gen 3.x) slots | 1 |
| Number of M.2 (M) slots | 2 |
| PCI Express x16 (Gen 4.x) slots | 1 |
| PCI Express x16 (Gen 5.x) slots | 1 |
| 1st M.2 largest key size | 2280 |
| 2nd M.2 largest key size | 2280 |
| 1st M.2 highest PCI Express generation | 5.0 |
| 2nd M.2 highest PCI Express generation | 4.0 |

### Graphics

| Feature | Value |
|---|---|
| Parallel processing technology support | Not supported |
| On-board graphics card | No |

### Network

| Feature | Value |
|---|---|
| Bluetooth version | 5.4 |
| Ethernet LAN | Yes |
| Bluetooth | Yes |
| Wi-Fi | Yes |
| Ethernet interface type | 5 Gigabit Ethernet |
| Top Wi-Fi standard | Wi-Fi 7 (802.11be) |

### Internal I/O

| Feature | Value |
|---|---|
| USB 2.0 connectors | 4 |
| CPU fan connector | Yes |
| Number of COM connectors | 1 |
| ATX Power connector (24-pin) | Yes |
| Chassis intrusion connector | Yes |
| Front panel audio connector | Yes |
| TPM connector | Yes |
| 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 |
| Front panel connector | Yes |
| RGB LED pin header | Yes |
| Number of RGB LED pin headers | 3 |
| Number of CPU fan connectors | 2 |
| Number of water pump connectors | 1 |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| Line-in | Yes |
| Ethernet LAN (RJ-45) ports | 1 |
| Microphone in | Yes |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 3 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 3 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 2 |

### Storage controllers

| Feature | Value |
|---|---|
| RAID levels | 10, 1 |
| Supported storage drive types | HDD & SSD |
| RAID support | Yes |
| Number of storage drives supported | 6 |
| Supported storage drive interfaces | 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 | 802.11a, Wi-Fi 7 (802.11be), Wi-Fi 6E (802.11ax), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n), 802.11g, 802.11b |
| DisplayPort version | 1.4 |
| Audio chip | Realtek ALC897 |

## FAQ

### How much does the MSI PRO B850M-A WIFI PZ Micro-ATX Socket AM5 motherboard cost, and is it available for purchase?

The price is 205.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 PRO B850M-A WIFI PZ Micro-ATX Socket AM5 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, pci express x16 (gen 3.x) slots, 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 B850M-A WIFI PZ Micro-ATX Socket AM5 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/11686467/67036692_large.webp