# Motherboard ASROCK B860M Pro RS — Intel B860, LGA 1851, micro ATX, DDR5, 4× DIMM, 2.5Gb LAN, 1×PCIe5 x16

**URL:** https://aio.lv/en/product--asrock-90-mxbrp0-a0uayz--11323825
**Data updated:** 2026-01-21 11:09 (EET)
**Category:** Motherboards
**Manufacturer:** ASROCK
**Manufacturer code:** 90-MXBRP0-A0UAYZ
**EAN:** 4711581490277
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 132.99 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 109.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asrock-90-mxbrp0-a0uayz--11323825

## 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

ASROCK B860M Pro RS is a micro ATX motherboard for Intel LGA 1851 (Socket V1) processors featuring the Intel B860 chipset. It supports DDR5 memory across 4 DIMM slots up to 256 GB in dual-channel, one PCIe 5.0 x16 and one PCIe 4.0 x4 slot, M.2 and four SATA III drives (total up to 7 drives), Realtek ALC897 7.1 audio, 2.5Gb Ethernet (Dragon RTL8125BG), DisplayPort 1.4 and HDMI outputs, USB Type-C Gen2x2 and multiple USB ports, RGB headers, TPM and EFI AMI BIOS. No integrated Wi‑Fi.

## Long description

Modern and futuristic, the Race Sport (RS) Edition is an evolution of the PRO series motherboard, designed for stable daily computing and advanced performance. It balances durability, efficiency and user-friendly features while offering a streamlined appearance. Built with high-quality components, the board supports current-generation memory and storage standards to meet demands from general use to gaming and content creation.
Advantages
The motherboard delivers stable power delivery through a Hi-Density power connector and a 10+1+1 power phase design with Dr. MOS for improved current handling and thermal performance. A 6-layer PCB enhances signal integrity and energy efficiency, enabling reliable memory overclocking with DDR5 XMP and AMD EXPO support. Storage performance is future-ready with a PCIe Gen5 Blazing M.2 slot. Additional practical features include an M.2 bottom heatsink, aluminum heatsinks for cooling, integrated 2.5 Gb/s LAN, onboard and addressable RGB headers with Polychrome RGB and SignalRGB support, dual video outputs (HDMI + DisplayPort), and a reinforced steel PCIe slot for secure GPU installation.
Key specifications
 Power design: Hi-Density Power Connector; 10+1+1 power phases; Dr. MOS
 PCB: 6-layer PCB for improved signal stability and thermal efficiency
 Memory: DDR5 with Intel® XMP & AMD EXPO support
 Storage: PCIe Gen5 Blazing M.2 (up to 128 Gb/s theoretical bandwidth)
 Cooling: M.2 bottom heatsink; aluminum heatsinks on board
 Networking: Dragon 2.5 Gb/s LAN
 Lighting: Polychrome RGB and SignalRGB support; onboard and addressable RGB headers
 Graphics outputs: HDMI + DisplayPort
 Expansion slot: Reinforced steel PCIe slot (PCIe 5.0 compatible)
How to use
Install the motherboard into a compatible ATX chassis, connect the Hi-Density CPU and main ATX power connectors, and fit DDR5 memory modules that support XMP or EXPO profiles if overclocking is intended. Mount the M.2 SSD into the Blazing M.2 slot and ensure the M.2 bottom heatsink is properly seated to aid heat dissipation. Attach GPU(s) to the reinforced PCIe slot and connect display cables to the HDMI or DisplayPort outputs. Install drivers and firmware updates from the manufacturer to enable LAN, RGB control (Polychrome/SignalRGB) and other platform features.
Recommendations
For best stability and performance, use certified XMP/EXPO DDR5 modules, ensure adequate case airflow to complement the aluminum heatsinks, and keep BIOS and drivers up to date. When overclocking, monitor temperatures and verify power connections, especially the Hi-Density CPU connector, to maintain safe operation.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | Micro 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 |

### Expansion slots

| Feature | Value |
|---|---|
| Number of M.2 (M) slots | 1 |
| PCI Express x4 (Gen 4.x) slots | 1 |
| PCI Express x16 (Gen 5.x) slots | 1 |

### 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 | 3 |
| Front panel audio connector | Yes |
| TPM connector | Yes |
| EPS power connector (8-pin) | 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 |
| 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) | 1 |

### 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 | 2 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 3 |
| USB 3.2 Gen 2x2 Type-C ports quantity | 1 |

### Storage controllers

| Feature | Value |
|---|---|
| RAID levels | 1, 5, 10 |
| RAID support | Yes |
| Number of storage drives supported | 7 |
| 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 | 244 mm |
| Depth | 244 mm |

### Other features

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

### Packaging content

| Feature | Value |
|---|---|
| Cables included | SATA |

## FAQ

### How much does the ASROCK B860M Pro RS micro ATX motherboard cost, and is it available for purchase?

The price is 132.99 € (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 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can ASROCK B860M Pro RS 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 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/11323825/65835692_large.webp