# Motherboard ASRock B860 Pro-A — Intel B860 ATX, LGA 1851, DDR5, 4x DIMM, 256GB, 2.5Gb LAN, 1x M.2, 4x SATA III

**URL:** https://aio.lv/en/product--asrock-90-mxbrn-a0uayz--11248294
**Data updated:** 2026-01-21 11:08 (EET)
**Category:** Motherboards
**Manufacturer:** ASROCK
**Manufacturer code:** 90-MXBRN-A0UAYZ
**EAN:** 4711581490246
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 127.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 105.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asrock-90-mxbrn-a0uayz--11248294

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

ASRock B860 Pro-A is an ATX desktop motherboard with Intel B860 chipset and LGA 1851 (Socket V1) for Intel processors. It supports DDR5 memory up to 256 GB across 4 DIMM slots in dual-channel, delivers onboard Intel UHD graphics with DisplayPort 1.4 and HDMI, and features 2.5 Gb Ethernet (Dragon RTL8125BG). Storage options include 1x M.2 and 4x SATA III with RAID 10 support. I/O offers multiple USB 3.2 and USB 2.0 ports, 7.1 Realtek ALC897 audio, RGB headers, TPM connector, and dual 8‑pin EPS power. BIOS is EFI AMI; no onboard Wi‑Fi.

## Long description

Pro-A series is designed for enhanced stability, durability, and efficiency, offering reliable performance, user-friendly features and a streamlined aesthetic suitable for daily computing tasks. The motherboard includes advanced power delivery, DDR5 memory support, PCIe Gen5 M.2 storage, onboard networking up to 2.5 Gb/s and customizable RGB options to meet modern PC needs.
Advantages
The board uses a 10+1+1 power phase design with Dr.MOS for smooth and efficient CPU power delivery, supporting higher currents and improved thermal performance. Hi-density power connectors increase stability during heavy CPU overclocking. Integrated aluminum heatsinks help maintain lower temperatures under load, while a reinforced steel PCIe slot supports heavy graphics cards. Built-in 2.5 Gb/s LAN improves network bandwidth and onboard RGB headers plus SignalRGB and Polychrome RGB support enable unified lighting control across compatible devices.
Key specifications
Power design: 10+1+1 power phases with Dr.MOS
Power connectors: Hi-Density CPU and ATX power connectors
Memory: DDR5 with Intel XMP / AMD EXPO profile support
Storage: PCIe Gen5 Blazing M.2 (up to 128 Gb/s)
Cooling: Optimized aluminum heatsink design
LAN: Dragon 2.5 Gb/s Ethernet
PCIe slot: Reinforced steel slot (PCIe 5.0 compatible)
RGB: Onboard RGB and addressable RGB headers, Polychrome RGB, SignalRGB support
How to use
Install the motherboard into your case following the manufacturer’s manual, connect the hi-density CPU and ATX power connectors, insert DDR5 memory modules that support Intel XMP or AMD EXPO if you plan to use pre-tested overclocking profiles, and mount an M.2 PCIe Gen5 SSD into the Blazing M.2 slot. Attach cooling solutions to the aluminum heatsinks and connect RGB devices to the appropriate headers. Configure BIOS settings for power phases, memory XMP/EXPO profiles and storage boot order, and install SignalRGB or Polychrome RGB software to synchronize lighting.
Recommendations
For stable overclocking and long-term reliability, use quality high-current power supplies, certified DDR5 modules with XMP/EXPO support, and ensure proper case airflow. Verify compatible PCIe Gen5 SSDs and heavy GPU mounting with the reinforced steel slot for secure installation.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | ATX |
| Motherboard chipset | Intel B860 |
| Component for | PC |
| Audio output channels | 7.1 |
| Windows operating systems supported | Windows 11 x64 |
| Motherboard chipset family | Intel |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | Intel |
| Processor socket | LGA 1851 (Socket V1) |

### Memory

| Feature | Value |
|---|---|
| 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 | non-ECC |

### Expansion slots

| Feature | Value |
|---|---|
| Number of M.2 (M) slots | 1 |
| PCI Express x16 (Gen 4.x) slots | 1 |
| PCI Express x16 (Gen 5.x) slots | 1 |

### Graphics

| Feature | Value |
|---|---|
| Graphics card | Intel® UHD Graphics |
| Graphics card family | Intel |
| On-board graphics card | Yes |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | Yes |
| LAN controller | Dragon RTL8125BG |
| Wi-Fi | No |
| Ethernet interface type | 2.5 Gigabit Ethernet |

### Internal I/O

| Feature | Value |
|---|---|
| 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 | 1 |
| RGB LED pin header | Yes |
| Number of RGB LED pin headers | 4 |
| Number of CPU fan connectors | 2 |
| Number of EPS power connectors (8-pin) | 2 |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| Line-in | Yes |
| USB 2.0 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 1 |
| Microphone in | Yes |
| HDMI ports quantity | 1 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 6 |
| USB 3.2 Gen 2x2 Type-C ports quantity | 1 |

### Storage controllers

| Feature | Value |
|---|---|
| RAID levels | 10, 1 |
| RAID support | Yes |
| Supported storage drive interfaces | SATA III, M.2 |

### BIOS

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 305 mm |
| Depth | 244 mm |

### Other features

| Feature | Value |
|---|---|
| DisplayPort version | 1.4 |
| Audio chip | Realtek ALC897 |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | SATA |
| Screws included | Yes |

## FAQ

### How much does the ASRock B860 Pro-A motherboard (LGA 1851, DDR5) cost, and is it available for purchase?

The price is 127.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 46 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 13.07.2026 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 B860 Pro-A motherboard (LGA 1851, DDR5) 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 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. 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.

## Image

https://aio.lv/img/cache/product/11248294/65835587_large.webp