This article covers ASRock マザーボード X670E Steel Legend AMD Ryzen 7000 シリーズ CPU (Soket AM5) 対応 X670E ATX マザーボード 【国内正規代理店品】.

Overview

The ASRock X670E Steel Legend is a mid-high-range ATX motherboard designed for AMD Ryzen 7000 series processors. It features the X670E chipset with PCIe 5.0 support for both graphics and storage. The power delivery system consists of 16+2+1 phases with 60A SPS MOSFETs, paired with enlarged heatsink armor to ensure stable operation even under heavy loads. For connectivity, the board includes dual LAN (2.5GbE + 1GbE), Wi-Fi 6E, and two USB4 Type-C ports. This motherboard strikes a solid balance between features and price, making it suitable for gaming rigs, content creation workstations, and enthusiast builds.

Compatibility Guide

The X670E Steel Legend uses the AMD Socket AM5 and is compatible with Ryzen 7000 series CPUs (including Ryzen 5, 7, and 9). It only supports DDR5 memory, with four DIMM slots capable of up to 128GB total. The motherboard follows the standard ATX form factor (12.0 x 9.6 inches) and fits in most ATX cases. Power delivery requires a 24-pin ATX main connector plus two 8-pin EPS CPU power connectors. Real-world pairing: a Ryzen 7 7800X3D with DDR5-6000 32GB and an RTX 4070-class GPU works well, leveraging the PCIe 5.0 x16 slot for the GPU.

Product Info

The ASRock X670E Steel Legend launched in late 2022 and remains widely available. Its market price is around ¥36,950 (approx. $260 USD) as of May 2026, positioning it as an affordable mid-high-range X670E board. The motherboard comes with a 3-year warranty (standard for ASRock in most regions). Key features: 16+2+1 phase VRM, PCIe 5.0 x16 slot, PCIe 5.0 M.2 slot, dual LAN (2.5GbE + 1GbE), Wi-Fi 6E, USB4 Type-C, and Realtek ALC1220 audio. The board supports memory overclocking up to DDR5-6600+ and includes BIOS Flashback for easy updates without a CPU. Purchase link: View on

Best Use Cases

This motherboard is ideal for the following scenarios: High-Performance Gaming: The PCIe 5.0 x16 slot ensures compatibility with the latest graphics cards, while the robust VRM can handle Ryzen 9 processors for maximum frame rates. Dual LAN and Wi-Fi 6E reduce network latency in online games. Content Creation / Video Editing: USB4 Type-C (40Gbps) and PCIe 5.0 M.2 storage provide blazing-fast data transfers for 4K/8K video files. Support for up to 128GB of DDR5 memory allows large project files to be kept in RAM. * Enthusiast Overclocking: With rich BIOS settings (PBO, EXPO, memory timings) and excellent VRM thermal performance, this board is well-suited for CPU and memory overclocking experiments.

Things to Consider

This motherboard exclusively uses DDR5 memory, which is more expensive than DDR4. If you're on a tight budget, a B650 board with DDR5 support might offer a better price-to-performance ratio. PCIe 5.0 GPUs and SSDs are still premium items; for most current games, PCIe 4.0 is sufficient. The USB4 Type-C ports are compatible with Thunderbolt 4 accessories, but not all Thunderbolt devices are guaranteed to work. For a high-end build, ensure your power supply is at least 750W, especially if pairing with a Ryzen 9 and a high-end GPU. ## Specifications | Item | Specification | | --- | --- | | Chipset | AMD X670E | | CPU Socket | AM5 | | Form Factor | ATX (12.0" x 9.6") | | Memory Slots | 4×DDR5 DIMM (Dual Channel) | | Max Memory | 128GB | | Supported Memory Speed | DDR5-6600+(OC), ECC/non-ECC, XMP & EXPO | | VRM Phases | 16+2+1 (60A SPS) | | PCIe x16 Slots | 1×PCIe 5.0 x16, 1×PCIe 3.0 x16 (x4 mode), 1×PCIe 3.0 x1 | | M.2 Slots | 1×PCIe 5.0 x4 (M.2 Key M), 2×PCIe 4.0 x4 (M.2 Key M) | | SATA Ports | 6×SATA 3.0 | | Rear USB | 2×USB4 Type-C (40Gbps), 1×USB 3.2 Gen2x2 Type-C (20Gbps), 1×USB 3.2 Gen2 Type-A (10Gbps), 6×USB 3.2 Gen1 Type-A (5Gbps) | | Front USB | 1×USB 3.2 Gen2x2 Type-C (20Gbps), 4×USB 3.2 Gen1 (via headers) | | Video Output | 1×HDMI 2.1, 1×DisplayPort 1.4 (DSC) | | Audio | Realtek ALC1220 7.1ch HD Audio | | LAN | Dragon RTL8125BG 2.5GbE, Intel I219V 1GbE | | Wireless | Wi-Fi 6E (802.11ax) + Bluetooth 5.2 | | BIOS Flashback | Yes (USB flashback) |

Product Disclosure (Amazon)

  • Manufacturer: ASRock
  • Seller: ノースフォワード
  • Fulfilled by: Amazon
  • ASIN: B0BGPCH9C3
  • Note: This article covers a manufacturer-made product based on Amazon listing details.