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header-product Motherboard ASRock B850 Pro-A — AMD B850 chipset, Socket AM5, ATX, 4× DDR5 DIMM, 256 GB, 4× M.2, PCIe 5.0 x16, 2.5Gb LAN
147.49 €

Motherboard ASRock B850 Pro-A — AMD B850 chipset, Socket AM5, ATX, 4× DDR5 DIMM, 256 GB, 4× M.2, PCIe 5.0 x16, 2.5Gb LAN

ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 1
ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 2
ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 3
ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 4
ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 5
ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 1
ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 2
ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 3
ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 4
ASRock B850 Pro-A ATX motherboard Socket AM5 Photo 5
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Motherboard ASRock B850 Pro-A — AMD B850 chipset, Socket AM5, ATX, 4× DDR5 DIMM, 256 GB, 4× M.2, PCIe 5.0 x16, 2.5Gb LAN

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Motherboard ASRock B850 Pro-A — AMD B850 chipset, Socket AM5, ATX, 4× DDR5 DIMM, 256 GB, 4× M.2, PCIe 5.0 x16, 2.5Gb LAN

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Short description

ASRock B850 Pro-A is an ATX motherboard with AMD B850 chipset for Socket AM5 processors (AMD Ryzen 7000 series). It supports up to 256 GB DDR5 memory across 4 DIMM slots (dual-channel, ECC & non‑ECC), four M.2 slots (PCIe 5.0/4.0/3.0), one PCIe 5.0 x16 slot, RAID, 2.5 Gigabit Ethernet (Dragon RTL8125BG), Realtek ALC897 7.1 audio, HDMI 2.1, multiple USB ports including USB‑C, and fan/water pump headers for custom cooling.
Available at price 147.49 €: 3 pcs.
Total available for order: 59 pcs.
Warranty: 2 Years
SKU: 11247608
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
23.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
28.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.74 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
28.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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3 mth. х 49.16 €

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All payment Methods:
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36 months installment: from 4.10 euros per month
Price for companies: 121.89€ Price is valid only for legal clients
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Product information

Description

The Asrock B850 Pro-A AMD B850 Socket AM5 ATX is a full-size ATX motherboard engineered for AMD Socket AM5 processors, compatible with Ryzen 7000, 8000 and 9000 series. It supports DDR5 memory up to 256 GB across four DIMM slots and offers a variety of storage interfaces including PCIe Gen5, Gen4, Gen3 M.2 and SATA III. The board integrates an optimized power delivery system and multi-layer PCB to deliver stable performance for everyday computing, content creation and gaming.

Advantages

This motherboard features a 14+2+1 power phase VRM design with Dr.MOS integrated power stages for efficient and smooth CPU power delivery, enabling better thermal performance and stable overclocking. An 8-layer PCB improves signal integrity and energy efficiency for memory overclocking. High-speed storage options include a PCIe Gen5 Blazing M.2 slot and Hyper M.2 Gen4 x4 support. Cooling-focused elements such as aluminum heatsinks, intelligent PWM/DC fan headers and Fan-Tastic Tuning help maintain low temperatures and quiet operation. Connectivity is broadened with a Dragon 2.5 Gb/s LAN and front-panel USB 3.2 Gen2x2 Type-C header. Built-in RGB headers and SignalRGB support enable system lighting customization, while reinforced PCIe steel slots and BIOS Flashback add durability and ease of use.

Suitable for

  • Desktop systems for gaming and multimedia
  • Content creation and productivity workstations
  • Systems requiring fast NVMe storage and high-speed networking
  • Enthusiast builds with DDR5 memory and moderate overclocking

Key specifications

  • Form factor: ATX
  • Chipset: AMD B850
  • CPU socket: Socket AM5 (supports Ryzen 7000/8000/9000 series)
  • Memory: 4 x DDR5 DIMM slots, up to 256 GB, Intel XMP / AMD EXPO support
  • Storage: PCIe Gen5 M.2 (Blazing M.2), PCIe Gen4 M.2 (Hyper M.2 Gen4 x4), SATA III
  • LAN: Dragon 2.5 Gb/s Ethernet
  • USB: Front-panel USB 3.2 Gen2x2 Type-C header, USB Type-C with DP-alt mode
  • Power delivery: 14+2+1 phase VRM with Dr.MOS and Hi-Density power connector

How to use

Install the motherboard into an ATX-compatible case and connect a compatible AM5 CPU, DDR5 memory modules, storage devices (M.2 or SATA) and a suitable power supply using the Hi-Density power connector and standard ATX power cables. Use the reinforced PCIe 5.0 slot for a graphics card if required. Connect case fans to the PWM/DC headers and configure fan curves with the Fan-Tastic Tuning utility in the provided ASRock software. Update or flash the BIOS using BIOS Flashback if needed before first boot to ensure CPU and memory compatibility.

Usage recommendations

For stable overclocking and long-term reliability, use high-quality DDR5 modules that support Intel XMP or AMD EXPO profiles, ensure adequate case ventilation and use the onboard heatsinks and fan control features to keep VRM and storage temperatures low. When performing major BIOS updates, follow ASRock instructions and use a reliable USB drive and stable power source.

Specifications

Motherboard form factor:
ATX
Motherboard chipset:
AMD B850
Component for:
PC
Processor socket:
Socket AM5
Number of memory slots:
4
Maximum internal memory:
256 GB
Supported memory types:
DDR5-SDRAM
All features

Features

Motherboard form factor:
ATX
Motherboard chipset:
AMD B850
Component for:
PC
Certification:
FCC, CE, ErP/EuP
Audio output channels:
7.1
Windows operating systems supported:
Windows 11 x64, Windows 10 x64
Motherboard chipset family:
AMD
Product colour:
Black

Processor

Processor manufacturer:
AMD
Processor socket:
Socket AM5

Memory

Number of memory slots:
4
Maximum internal memory:
256 GB
Supported memory types:
DDR5-SDRAM
Memory channels:
Dual-channel
Unbuffered memory:
Yes
Memory slots type:
DIMM
ECC сompatibility:
ECC & non-ECC

Expansion slots

Number of M.2 (M) slots:
4
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
3rd M.2 largest key size:
2280
4th M.2 largest key size:
2280
1st M.2 highest PCI Express generation:
5.0
2nd M.2 highest PCI Express generation:
4.0
3rd M.2 highest PCI Express generation:
4.0
4th M.2 highest PCI Express generation:
3.0

Graphics

Maximum resolution:
3840 x 2160
Parallel processing technology support:
Not supported
HDCP:
Yes

Network

Ethernet LAN:
Yes
LAN controller:
Dragon RTL8125BG
Wi-Fi:
No
Ethernet interface type:
2.5 Gigabit Ethernet

Internal I/O

USB 2.0 connectors:
2
CPU fan connector:
Yes
ATX Power connector (24-pin):
Yes
Number of chassis fan connectors:
4
Front panel audio connector:
Yes
TPM connector:
Yes
EPS power connector (8-pin):
Yes
USB 3.2 Gen 1 (3.1 Gen 1) connectors:
1
Number of SATA III connectors:
4
USB 3.2 Gen 2 (3.1 Gen 2) connectors:
0
12V power connector:
Yes
RGB LED pin header:
Yes
USB 3.2 Gen 2x2 connectors:
1
Number of RGB LED pin headers:
4
Number of CPU fan connectors:
2
Number of water pump connectors:
1
Number of EPS power connectors (8-pin):
2

Rear panel I/O ports

Line-in:
Yes
USB connector type:
USB Type-C, USB Type-A
USB 2.0 ports quantity:
6
Ethernet LAN (RJ-45) ports:
1
Headphone outputs:
3
Microphone in:
Yes
VGA (D-Sub) ports quantity:
0
DVI-D ports quantity:
0
HDMI ports quantity:
1
HDMI version:
2.1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity:
4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity:
1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity:
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity:
1

Storage controllers

RAID levels:
10, 1
Supported storage drive types:
HDD & SSD
RAID support:
Yes
Number of storage drives supported:
8
Supported storage drive interfaces:
SATA III, PCI Express 5.0, PCI Express 4.0, PCI Express 3.0

BIOS

BIOS memory size:
256 Mbit
BIOS type:
UEFI AMI

Weight & dimensions

Width:
305 mm
Depth:
244 mm

Other features

Supported processor sockets:
Socket AM5
Audio chip:
Realtek ALC897

Packaging content

Cables included:
SATA
Screws included:
Yes

Description

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Stock data
Warehouse Stock Delivery to the store Store Price
WH155 3 23.07.2026 147.49 €
EU86 3 23.07.2026 148.99 €
EU3 7 23.07.2026 149.49 €
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WH109 7 06.08.2026 165.49 €
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149.49 €
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149.99 €
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Customer reviews

Customer questions

FAQ

How much does the ASRock B850 Pro-A ATX motherboard Socket AM5 cost, and is it available for purchase?

The price is 147.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 59 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 23.07.2026 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 ASRock B850 Pro-A ATX motherboard Socket AM5 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the ASRock B850 Pro-A ATX motherboard Socket AM5 online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 ASROCK 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 ASROCK 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

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 ASRock B850 Pro-A ATX motherboard Socket AM5?

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.
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