# Motherboard ASRock B860 Pro RS — Intel B860, LGA1851 (Socket V1), ATX, 4× DDR5 slots, 256 GB, 2.5Gb LAN, DisplayPort & HDMI, 7.1 audio

**URL:** https://aio.lv/en/product--asrock-90-mxbrm-a0uayz--11248634
**Data updated:** 2026-01-21 11:08 (EET)
**Category:** Motherboards
**Manufacturer:** ASROCK
**Manufacturer code:** 90-MXBRM-A0UAYZ
**EAN:** 4711581490222
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 138.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 114.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asrock-90-mxbrm-a0uayz--11248634

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

ASRock B860 Pro RS is an ATX motherboard with Intel B860 chipset for LGA1851 (Socket V1) processors, supporting Intel Core Ultra (Series 2) and other LGA1851 CPUs. It offers 4 DIMM slots for DDR5 up to 256 GB (dual-channel, up to 8666 MHz), one PCIe x16 Gen5 and one PCIe x16 Gen4 slot, 2.5 Gb Ethernet (Dragon RTL8125BG), DisplayPort 1.4 and HDMI outputs, 7.1 Realtek ALC897 audio, multiple USB Type-A and Type-C ports, SATA III ports, RAID 0/1/5/10 and UEFI AMI BIOS. No onboard Wi‑Fi or Bluetooth.

## Long description

Modern and futuristic, the Race Sport (RS) Edition is the evolution of the PRO series motherboard, optimized for stability, durability and efficiency. It combines reliable performance, user-friendly features and a streamlined style suitable for daily computing tasks and system builds that require balanced power delivery and advanced memory support.
Advantages
The motherboard features a Hi‑Density Power Connector designed to handle higher current for safer and more stable CPU overclocking, plus a 10+1+1 power phase design with Dr. MOS for smooth and efficient power delivery. A 6‑layer PCB improves signal integrity and thermal performance for memory overclocking, while DDR5 XMP and AMD EXPO support enables easy use of pre‑tested overclocking profiles. PCIe Gen5 Blazing M.2 offers up to 128 Gb/s transfer speeds for next‑generation SSDs. Additional benefits include an M.2 bottom heatsink and aluminum heatsink for improved cooling, 2.5 Gb/s LAN for higher network bandwidth, onboard Polychrome RGB and SignalRGB compatibility for lighting control, dual graphics outputs (HDMI + DisplayPort), and a reinforced steel PCIe slot to secure heavy graphics cards.
Key specifications
Socket: Intel LGA 1851 (Intel Core Ultra Series 2)
Chipset: Intel B860
Power design: 10+1+1+1+1 power phase with Dr.MOS (VCore+GT+SA)
Memory: 4 x DDR5 DIMM, Dual Channel, up to 8666+ MHz (OC), max 256 GB
Storage: 1 PCIe Gen5 Blazing M.2 (PCIe Gen5x4), 2 Hyper M.2 (PCIe Gen4x4), 4 x SATA3
Expansion slots: 1 x PCIe 5.0 x16, 1 x PCIe 4.0 x16, 1 x M.2 Key E for Wi‑Fi
USB: 1 x USB 3.2 Gen2x2 Type‑C (rear), 1 x USB 3.2 Gen1 Type‑C (front), 8 x USB 3.2 Gen1 (6 rear, 2 front), 6 x USB 2.0 (2 rear, 4 front)
Audio: Realtek ALC897 7.1 CH HD Audio Codec, Nahimic Audio
LAN: Realtek 2.5 Gb/s Ethernet
BIOS: EFI AMI 256 Mbit, supports BIOS Flashback
Form factor: ATX
How to use
Install the motherboard into a compatible ATX chassis and mount the CPU into the LGA1851 socket following the CPU manufacturer’s instructions. Insert DDR5 memory modules into the DIMM slots in the recommended configuration for dual channel, enable Intel XMP or AMD EXPO profiles in BIOS to apply tested memory overclock settings. Connect storage devices to the appropriate M.2 slots or SATA ports and install the graphics card into the reinforced PCIe x16 slot. Attach power connectors including the Hi‑Density CPU power connector, then connect front‑panel I/O, USB headers and cooling solutions. Enter BIOS to configure boot order, enable required performance profiles and verify system stability before loading the operating system.
Recommendations
Use high‑quality, XMP/EXPO‑capable DDR5 memory modules and a compatible power supply with sufficient current headroom for overclocking. Ensure good case airflow and proper mounting of the M.2 bottom heatsink. Update BIOS to the latest version for optimal compatibility with Intel Core Ultra (Series 2) processors and PCIe Gen5 devices.

## 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 |
| Supported memory clock speed (max) | 8666 MHz |

### 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 |

### 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 | 2 |
| Number of SATA III connectors | 4 |
| RGB LED pin header | Yes |
| 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 | 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 | 1, 5, 10 |
| Supported storage drive types | HDD & SSD |
| RAID support | Yes |
| Supported storage drive interfaces | M.2, SATA III |

### 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 |

## FAQ

### How much does the ASRock B860 Pro RS motherboard — Intel B860, LGA1851 cost, and is it available for purchase?

The price is 138.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 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 17.07.2026 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 RS motherboard — Intel B860, LGA1851 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/11248634/66675818_large.webp