This article covers ASRock マザーボード H670 Steel Legend Intel H670 シリーズ CPU (LGA1700) 対応 H670 ATXマザーボード 【国内正規代理店品】 黒.

Overview

The ASRock H670 Steel Legend is an ATX motherboard built on the Intel H670 chipset, designed for 12th Gen Core processors (LGA1700). It strikes a balance between the entry-level H610 and the high-end Z690, offering PCIe 5.0 support, 2.5G LAN, and USB3.2 Gen2x2 Type-C while keeping costs down by using DDR4 memory. This makes it an attractive option for users who want to upgrade to a modern CPU without investing in expensive DDR5 RAM. The board features a robust power delivery system with 8+1 Dr.MOS phases and ample heatsinks for stable operation.

Compatibility Guide

Socket: LGA1700, compatible with Intel 12th Gen Core i9/i7/i5/i3 processors. Memory: 4x DDR4 DIMM slots, up to 128GB, supporting XMP profiles. Form factor: standard ATX (305×244mm). PCIe slots: 1x PCIe 5.0 x16, 1x PCIe 4.0 x4, 3x PCIe 3.0 x1. Storage: 4x SATA3, 3x M.2 Gen4 x4 (one direct from CPU). Power: 24-pin main + 8-pin CPU. Networking: Realtek 2.5G LAN. Note that CPU overclocking is not supported; only memory overclocking via XMP is available.

Product Info

Released in early 2022, the H670 Steel Legend sits in the mid-range segment. It offers many features of the premium Z690 chipset—such as PCIe 5.0 and multiple M.2 slots—but omits CPU overclocking and Thunderbolt 4 ports. The board comes with a 3-year warranty (for official Japanese distributors). Typical retail price is around ¥35,000–¥40,000. It is a cost-effective choice for users who want to build a modern system using existing DDR4 memory.

Best Use Cases

Gaming: Ideal for gamers who want PCIe 5.0 for future GPUs but don't need CPU overclocking. DDR4 memory keeps the build affordable. Not suitable for extreme overclockers. Content Creation / Workstation: Three M.2 slots allow fast NVMe storage arrays. 2.5G LAN speeds up file transfers. However, lack of Thunderbolt 4 ports may limit external high-speed storage options. * Budget / Secondary PC: Low-cost DDR4 and good expansion make it great for a home server or media PC. Avoid if you plan to overclock the CPU or need Thunderbolt connectivity.

Things to Consider

The most significant limitation is the lack of CPU overclocking support. If you buy a K-series processor, you won't be able to fully utilize its unlocked multiplier. Additionally, the board uses DDR4 only—there is no DDR5 support. If you anticipate upgrading to DDR5 in the near future, consider a Z690 or B760 DDR5 board. The Thunderbolt 4 header is present but no physical port; you'll need an add-in card. Also, only one M.2 slot comes with a heatsink; high-performance Gen4 SSDs in the other slots may require aftermarket cooling. ## FAQ
Q: Can I use Intel 13th Gen Core processors on this motherboard? A: Officially, only 12th Gen is supported. Some 13th Gen CPUs may work after a BIOS update, but ASRock does not guarantee stability. For a reliable system, stick with 12th Gen. Q: Does it support DDR4-3600 memory? A: The H670 chipset officially supports up to DDR4-3200, but XMP profiles can enable higher speeds like 3600 MHz. However, stability depends on the CPU's memory controller and the specific memory kit. Check the QVL list on ASRock's website. Q: How many M.2 heatsinks are included? A: Only one M.2 slot (the topmost) comes with a heatsink. The other two slots lack heatsinks, so consider purchasing additional cooling for high-performance NVMe drives.

Product Disclosure (Amazon)

  • Manufacturer: ASRock
  • Seller: ノースフォワード
  • Fulfilled by: Amazon
  • ASIN: B09QFV15T9
  • Note: This article covers a manufacturer-made product based on Amazon listing details.