This article covers ASRock B650 Steel Legend WiFi ATXマザーボード MB6475.

Overview

The ASRock B650 Steel Legend WiFi is an ATX motherboard that brings a distinctive white aesthetic to the AM5 platform without compromising on power delivery or connectivity. Equipped with a 14+2+1 phase Dr.MOS VRM, it easily handles Ryzen 9 class CPUs, making it a strong candidate for high-performance gaming and content creation rigs. This board supports DDR5 memory up to 7200+ MT/s (OC) and features a PCIe 5.0 x16 slot plus an M.2 PCIe 5.0 slot for the fastest SSDs available. The rear I/O includes a 20Gbps USB-C port, 2.5GbE LAN, and integrated WiFi 6E with Bluetooth 5.2, covering all modern connectivity needs. Positioned as a mid-range enthusiast board, the B650 Steel Legend WiFi offers features often found on higher-priced siblings—like a reinforced steel PCIe slot, 20K black capacitors, and BIOS Flashback—while maintaining a price point around ¥25,000. Its white PCB and heatsinks make it especially appealing for builders crafting a clean, white-themed PC.

Compatibility Guide

Socket: AM5 supports AMD Ryzen 7000 and 8000 series processors. Compatibility with upcoming Ryzen 9000 series (via BIOS update) is expected but not confirmed. For now, any AM5 socket CPU works. Memory: Four DDR5 DIMM slots, dual-channel, up to 192GB. Supports EXPO and XMP 3.0 profiles. Officially rated up to DDR5-7200+ with overclocking. Form Factor: Standard ATX (305 x 244 mm). Fits most mid-tower and full-tower cases. Ensure your case has at least 7 expansion slots. Power: Requires one 24-pin main connector and one 8-pin + one 4-pin CPU power connector. A 650W or higher PSU is recommended for a typical build with a Ryzen 7 and a mid-range GPU. * Storage: 3x M.2 slots (1x PCIe 5.0 x4, 2x PCIe 4.0 x4) and 4x SATA 6Gbps. The M.2 PCIe 5.0 slot shares bandwidth with the chipset; installing a Gen5 SSD in that slot does not affect the GPU slot.

Product Info

Released in early 2024, the ASRock B650 Steel Legend WiFi sits in the mid-to-high tier of B650 motherboards. Priced around ¥24,700 on Japan, it competes with other B650 boards from MSI and Gigabyte. The warranty is the standard 3-year term from ASRock. Key selling points include the robust VRM, premium audio codec (Realtek ALC4082), and the white color scheme that stands out in a sea of black PCBs.

Best Use Cases

White-themed gaming PC builders: If you're aiming for an all-white build (case, fans, cables), this motherboard's white PCB and silver heatsinks are the perfect foundation. Looks great with white GPUs like ASUS ROG Strix white editions. Enthusiasts who want room to upgrade: With PCIe 5.0 for both GPU and NVMe, plus three M.2 slots, you can start with a single SSD and add more later without swapping boards. The BIOS Flashback button allows CPU-less BIOS updates, making it easy to support newer chips down the road. Gamers and content creators using Ryzen 9: The 14+2+1 phase VRM with 80A Dr.MOS ensures stable power delivery even under sustained multi-threaded loads. This board can handle the Ryzen 9 7950X at stock or moderate PBO without VRM overheating. Not ideal for: Small form factor builds (ATX too big), multi-GPU setups (only one PCIe 5.0 x16 slot), or extreme overclockers who need the extra chipset features of X670. ## Alternatives
MSI MAG B650 TOMAHAWK WiFi: Similar price and feature set, but with a black PCB. The VRM is 12+2+1, still adequate for Ryzen 9. MSI's BIOS is often praised for its clear layout. If color isn't a priority, this is a solid alternative. GIGABYTE B650 AORUS ELITE AX: Also around ¥25,000, offers WiFi 6E, PCIe 5.0 M.2, and a slightly different USB layout. Gigabyte's software suite (GCC) is more mature than ASRock's, but the VRM phases are fewer (12+2+1). For pure VRM strength, ASRock takes the lead.

Things to Consider

Heatsink size on M.2 slots: The top M.2 slot (PCIe 5.0) has a large heatsink that may interfere with some oversized graphics card backplates. Test fitment before final assembly. PCIe lane sharing: When using the second M.2 slot (PCIe 4.0), the PCIe x4 slot (PCIe 3.0 x4) will be disabled. Check your expansion needs beforehand. No onboard buttons: Unlike high-end ASRock boards, this one lacks power/reset buttons and debug LEDs. If you do a lot of bare-bench testing, consider a board with those features. BIOS version: Some early units may have an older BIOS not compatible with Ryzen 8000G series out of the box. Use BIOS Flashback (USB port + button) to update without a CPU installed. ## FAQ Q: Can I use the B650 Steel Legend WiFi with a Ryzen 5 7600 for a budget build? A: Absolutely. The 7600 is an excellent match; you won't need the high-end VRM, but the board gives you headroom to upgrade to a Ryzen 9 later without swapping the motherboard. The white design still looks premium even in a budget build. Q: Does this motherboard support 64GB of RAM (2x32GB) at DDR5-6000? A: Yes, it does. Most 2x32GB ki

Product Disclosure (Amazon)

  • Manufacturer: ASRock
  • Seller: XPRICE
  • Fulfilled by: XPRICE
  • ASIN: B0CXPXBF2M
  • Note: This article covers a manufacturer-made product based on Amazon listing details.