---
product_id: 707835496
title: "B860M Steel Legend WiFi 6E B860 LGA1851 Intel Core Ultra DDR5 8666 MHz 256GB M.2 Micro ATX Motherboard Thunderbolt SATA3 6.0 Gb/s PCIe 5.0"
brand: "asrock"
price: "¥51229"
currency: JPY
in_stock: true
reviews_count: 4
url: https://www.desertcart.jp/products/707835496-b860m-steel-legend-wifi-6e-b860-lga1851-intel-core-ultra
store_origin: JP
region: Japan
---

# DDR5 8666+ MHz Dual Channel 256GB Max Memory Capacity Thunderbolt 4 Type-C Connectivity B860M Steel Legend WiFi 6E B860 LGA1851 Intel Core Ultra DDR5 8666 MHz 256GB M.2 Micro ATX Motherboard Thunderbolt SATA3 6.0 Gb/s PCIe 5.0

**Brand:** asrock
**Price:** ¥51229
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power your productivity with the Steel Legend – where speed meets legendary reliability!

## Quick Answers

- **What is this?** B860M Steel Legend WiFi 6E B860 LGA1851 Intel Core Ultra DDR5 8666 MHz 256GB M.2 Micro ATX Motherboard Thunderbolt SATA3 6.0 Gb/s PCIe 5.0 by asrock
- **How much does it cost?** ¥51229 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/707835496-b860m-steel-legend-wifi-6e-b860-lga1851-intel-core-ultra)

## 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

- • **Rock-Solid Durability:** Built with exclusive 20K capacitors ensuring stable, reliable performance under pressure.
- • **Next-Gen Thunderbolt 4:** Ultra-fast Type-C port for lightning data transfer and versatile display options.
- • **Blazing-Fast DDR5 Memory:** Supports up to 8666+ MHz OC for seamless multitasking and future-proof performance.
- • **Immersive Audio Experience:** Realtek ALC1220 7.1 Channel HD Audio with Nahimic for crystal-clear sound clarity.
- • **Versatile Graphics Outputs:** Multiple display options including HDMI, DisplayPort, and Thunderbolt for ultimate flexibility.

## Overview

The ASRock B860M Steel Legend WiFi motherboard is a micro ATX powerhouse designed for Intel Core Ultra processors, featuring cutting-edge DDR5 memory support up to 8666+ MHz, Thunderbolt 4 connectivity, and robust 256GB RAM capacity. Engineered with premium components like exclusive 20K capacitors and Realtek ALC1220 audio codec, it delivers rock-solid stability and immersive multimedia performance, perfect for professionals and enthusiasts seeking future-ready, reliable computing.

## Description

Steel Legend represents the philosophical state of rock-solid durability and irresistible aesthetics. Built around most demanding specs and features, the Steel Legend series aims at daily users and mainstream enthusiasts! Providing a strong array of materials/components to ensure a stable and reliable performance.

## Features

- 4 x DDR5 DIMMs Supports Dual Channel, up to 8666+ (OC)
- Graphics Output Options: 1 HDMI, 1 DisplayPort, 1 Thunderbolt 4 Type-C
- Realtek ALC1220 7.1 CH HD Audio Codec, Nahimic Audio
- Exclusive 20K Cap with 1000uF Capacitance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B0DRTVLSJ6 |
| Best Sellers Rank | #47 in Computer Motherboards |
| Brand | ASRock |
| Chipset Type | Intel B860 |
| Compatible Devices | Desktop |
| Compatible Processors | Intel Core Ultra |
| Cpu Model | Intel Core Ultra 5 |
| Customer Reviews | 3.7 3.7 out of 5 stars (12) 3.7 out of 5 stars |
| Global Trade Identification Number | 04711581490215 |
| Graphics Card Interface | Integrated, PCI Express |
| Item Weight | 3 pounds |
| 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 | 90-MXBQF0-A0UAYZ |
| Model Name | B860M STEEL LEGEND WIFI |
| Model Number | B860M Steel Legend WiFi |
| Number Of Ethernet Ports | 1 |
| Number Of Ports | 9 |
| Platform | Windows 11 |
| Processor Socket | Socket LGA 1851 |
| Ram Memory Maximum Size | 256 GB |
| Ram Memory Technology | DDR5 |
| S Pdif Connector Type | Optical |
| System Bus Standard Supported | SATA 3 |
| Total Number Of Hdmi Ports | 1 |
| Total Pcie Ports | 1 |
| Total Sata Ports | 4 |
| Unit Count | 1 Count |

## 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 STEEL LEGEND WIFI
- **Platform:** Windows 11
- **RAM Memory Technology:** DDR5

## Images

![B860M Steel Legend WiFi 6E B860 LGA1851 Intel Core Ultra DDR5 8666 MHz 256GB M.2 Micro ATX Motherboard Thunderbolt SATA3 6.0 Gb/s PCIe 5.0 - Image 1](https://m.media-amazon.com/images/I/81EOGj4HEpL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid Motherboard
*by  on Reviewed in the United States March 23, 2025*

Just installed this with a Core Ultra 7 265k. This board is heavy and feels well constructed.The only issue I had was the LED bar at the bottom stays powered 24/7, it can be turned off with Asrock's RGB software though. The VRM heatsinks also blocked my Nzxt X53 cooler from being installed in its usual orientation.Overall a solid product from ASRock. No issues with stability or performance so far. Hopefully it lasts for years to come like the Msi board it relaced.

### ⭐ Surprise: OPEN BOX
*by  on Reviewed in the United States December 16, 2025*

It turned out to be an open box item, and I can't test it till the rest of my build arrives. But open box and advertised as new is NOT ethical

### ⭐⭐⭐⭐⭐ buena placa madre y su BIOS es muy practica e intuitiva para los Intel Core ULTRA 200
*by  on Reviewed in the United States August 6, 2025*

Es buena placa madre gama media para los procesadores core ultra 200, su bios es muy básica pero muy completa e intuitiva, la tuve con un Intel Core Ultra 7 265K y anduvo excelente, la dejaré para armar un pc de la casa porque adquerí una placa madre gama superior para hacer overclock al Ultra 7, una Z890 MSI me compré ahora.

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**Shop now:** [https://www.desertcart.jp/products/707835496-b860m-steel-legend-wifi-6e-b860-lga1851-intel-core-ultra](https://www.desertcart.jp/products/707835496-b860m-steel-legend-wifi-6e-b860-lga1851-intel-core-ultra)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-22*