---
product_id: 734625432
title: "B860M Pro A DDR5 8666 MHz 256GB M.2 LGA1851 B860 Micro ATX Motherboard Intel Core Ultra BIOS Flashback SATA3 6.0 Gb/s PCIe 5.0"
brand: "asrock"
price: "$247.26"
currency: USD
in_stock: true
reviews_count: 2
category: "As Rock"
url: https://www.desertcart.us/products/734625432-b860m-pro-a-ddr5-8666-mhz-256gb-m-2-lga1851
store_origin: US
region: United States of America
---

# 10+1+1+1+1 Power Phase for stable OC Supports up to 256GB DDR5 8666 MHz PCIe 5.0 for next-gen GPU speed B860M Pro A DDR5 8666 MHz 256GB M.2 LGA1851 B860 Micro ATX Motherboard Intel Core Ultra BIOS Flashback SATA3 6.0 Gb/s PCIe 5.0

**Brand:** asrock
**Price:** $247.26
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your next-gen build with ASRock B860M Pro A – where speed meets style!

## Quick Answers

- **What is this?** B860M Pro A DDR5 8666 MHz 256GB M.2 LGA1851 B860 Micro ATX Motherboard Intel Core Ultra BIOS Flashback SATA3 6.0 Gb/s PCIe 5.0 by asrock
- **How much does it cost?** $247.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/734625432-b860m-pro-a-ddr5-8666-mhz-256gb-m-2-lga1851)

## Best For

- asrock enthusiasts

## Why This Product

- Trusted asrock brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Blazing Fast Memory:** Supports up to 256GB DDR5 RAM at an eye-watering 8666+ MHz (OC) to future-proof your multitasking and creative workflows.
- • **Customizable & Durable:** POLYCHROME SYNC RGB headers plus an 8-layer PCB design for superior signal integrity and personalized aesthetics.
- • **Power-Packed Stability:** 10+1+1+1+1 Dr.MOS power phases deliver rock-solid voltage for seamless overclocking and peak performance.
- • **Next-Gen Graphics Ready:** PCIe 5.0 x16 slot ensures you’re ready to harness the full power of the latest GPUs without bottlenecks.
- • **Ultimate Connectivity Suite:** Equipped with HDMI, DisplayPort, SATA3 6.0 Gb/s, USB 3.2 Gen2x2 Type-C, WiFi 6E, and 2.5G LAN for lightning-fast data and display options.

## Overview

The ASRock B860M Pro A is a high-performance Micro ATX motherboard designed for Intel Core Ultra processors, featuring advanced 10+1+1+1+1 power phases with Dr.MOS technology, support for up to 256GB DDR5 RAM at 8666 MHz, and PCIe 5.0 for cutting-edge graphics. It offers versatile connectivity including HDMI, DisplayPort, SATA3, USB 3.2 Gen2x2 Type-C, WiFi 6E, and 2.5G LAN, all built on a durable 8-layer PCB with customizable RGB lighting, making it an ideal choice for professionals and gamers seeking compact yet powerful systems.

## Description

The ASRock B860I Lightning WiFi is a compact Mini-ITX motherboard designed for Intel's LGA1700 socket, supporting 12th/13th/14th Gen Core processors. This space-saving powerhouse features a 6+1+1 power phase design with 50A Dr.MOS for efficient power delivery, making it ideal for small form factor builds. It supports DDR5 memory (up to 7200+ MHz, OC) and includes PCIe 5.0 x16 for next-gen graphics cards, delivering impressive performance in a tiny package. Storage options include one PCIe 4.0 x4 M.2 slot and four SATA III ports, while connectivity features WiFi 6E and 2.5G LAN for ultra-fast networking. The rear I/O offers USB 3.2 Gen2x2 Type-C (20Gbps), DisplayPort 1.4, and HDMI 2.1 for 4K displays. The Realtek ALC897 audio codec ensures clear sound, and the board includes RGB LED headers for customizable lighting effects. Built for durability, the B860I Lightning WiFi features high-density power connectors and 8-layer PCB design for better signal integrity. With BIOS Flashback for easy updates and ASRock's Lightning Series optimizations, this motherboard is perfect for gamers and creators building powerful, compact systems without compromising on features.

## Features

- 10+1+1+1+1 Power Phase, Dr.MOS for VCore+GT+SA
- 4 x DDR5 DIMMs Supports Dual Channel, up to 8666+ (OC)
- Graphics Output Options: 1 HDMI, 1 DisplayPort
- Realtek ALC1220 7.1 CH HD Audio Codec
- POLYCHROME SYNC

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DSQLMT9V |
| Best Sellers Rank | #62 in Computer Motherboards |
| Brand | ASRock |
| CPU Socket | LGA 1851 |
| Chipset Type | Intel B860 |
| Compatible Devices | Desktop |
| Compatible Processors | Intel Core Ultra |
| Customer Reviews | 3.4 out of 5 stars 3 Reviews |
| Global Trade Identification Number | 04711581490291 |
| Graphics Card Interface | Integrated, PCI Express |
| Item Weight | 1000 Grams |
| Main Power Connector Type | 24-Pin |
| Manufacturer | ASRock |
| Memory Clock Speed | 8666 MHz |
| Memory Slots Available | 4 |
| Memory Storage Capacity | 256 GB |
| Mfr Part Number | B860M PRO-A |
| Model Name | B860M PRO-A |
| Model Number | B860M PRO-A |
| Number of Ethernet Ports | 1 |
| Number of Ports | 13 |
| Platform | Windows 11 |
| Processor Socket | LGA 1851 |
| RAM Memory Technology | DDR5 |
| Ram Memory Maximum Size | 256 GB |
| System Bus Standard Supported | SATA 3 |
| Total Number of HDMI Ports | 1 |
| Total PCIe Ports | 2 |
| Total SATA Ports | 4 |
| Total Usb Ports | 6 |
| Warranty Description | 3 years |

## Product Details

- **Brand:** ASRock
- **CPU Socket:** LGA 1851
- **Chipset Type:** Intel B860
- **Compatible Devices:** Desktop
- **Compatible Processors:** Intel Core Ultra
- **Memory Clock Speed:** 8666 MHz
- **Memory Storage Capacity:** 256 GB
- **Model Name:** B860M PRO-A
- **Platform:** Windows 11
- **RAM Memory Technology:** DDR5

## Images

![B860M Pro A DDR5 8666 MHz 256GB M.2 LGA1851 B860 Micro ATX Motherboard Intel Core Ultra BIOS Flashback SATA3 6.0 Gb/s PCIe 5.0 - Image 1](https://m.media-amazon.com/images/I/81qaJigyFrL.jpg)
![B860M Pro A DDR5 8666 MHz 256GB M.2 LGA1851 B860 Micro ATX Motherboard Intel Core Ultra BIOS Flashback SATA3 6.0 Gb/s PCIe 5.0 - Image 2](https://m.media-amazon.com/images/I/91ZcEk8LEsL.jpg)
![B860M Pro A DDR5 8666 MHz 256GB M.2 LGA1851 B860 Micro ATX Motherboard Intel Core Ultra BIOS Flashback SATA3 6.0 Gb/s PCIe 5.0 - Image 3](https://m.media-amazon.com/images/I/61dWf3LvxvL.jpg)
![B860M Pro A DDR5 8666 MHz 256GB M.2 LGA1851 B860 Micro ATX Motherboard Intel Core Ultra BIOS Flashback SATA3 6.0 Gb/s PCIe 5.0 - Image 4](https://m.media-amazon.com/images/I/71Lf-e-iGLL.jpg)
![B860M Pro A DDR5 8666 MHz 256GB M.2 LGA1851 B860 Micro ATX Motherboard Intel Core Ultra BIOS Flashback SATA3 6.0 Gb/s PCIe 5.0 - Image 5](https://m.media-amazon.com/images/I/81d8ivswzGL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***S on October 2, 2025*



### ⭐ Review
*by J***E on March 16, 2026*



## Frequently Bought Together

- ASRock B860M Pro A DDR5 8666 MHz 256GB M.2 LGA1851 B860 Micro ATX Motherboard Intel Core Ultra BIOS Flashback SATA3 6.0 Gb/s PCIe 5.0
- Intel Core Ultra 7 Desktop Processor 265K - 20 cores (8 P-cores + 12 E-cores) up to 5.5 GHz
- Noctua NH-L9i-17xx chromax.Black, Premium Low-Profile CPU Cooler for Intel LGA1700 and LGA1851 (Black)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-22*