Overview

The ASRock Steel Legend SL-1000GW is a 1000W ATX 3.1 fully modular power supply designed for next-generation GPUs. It carries 80PLUS GOLD certification, delivering high efficiency and stable power output. The unit includes a PCIe 5.1-ready 12V-2x6 cable, allowing direct connection to the latest graphics cards. Sold by Amazon.co.jp, the model number is Steel Legend, ASIN is B0DPGX7B7X, and the manufacturer is ASRock.

Key Features

  • 1000W continuous output with 80PLUS GOLD efficiency (up to ~90%)
  • ATX 3.1 compliant, handling transient loads up to 200% of rated power
  • Fully modular cabling for clean builds and easy cable management
  • Includes a native 12V-2x6 (12VHPWR) cable for PCIe 5.1 GPUs
  • 135mm silent fan with semi-passive mode (fan stops under low load)

Compatibility Guide

  • Form factor: Standard ATX (fits most mid-tower and full-tower cases)
  • Connectors: Main 24-pin, CPU 8-pin (×2), PCIe 6+2-pin (×4), SATA (×8), Peripheral (×4), 12V-2x6 (×1)
  • Motherboard support: ATX, Micro-ATX, Mini-ITX (all with ATX PSU mounting)
  • GPU support: Direct 12V-2x6 connection for RTX 40-series and newer; use included PCIe 6+2-pin cables for older cards
  • Cable lengths: CPU ~65cm, PCIe ~60cm, SATA ~50cm (sufficient for most mid-tower builds)

Ideal Builds

  • High-end gaming PCs: Perfect for RTX 4080/4090 or RX 7900 XTX builds
  • Workstations: Reliable power for rendering, AI, and content creation
  • Quiet systems: Semi-passive fan mode keeps noise minimal at idle
  • Future-proof builds: ATX 3.1 and 1000W headroom support next-gen components

Upgrade Considerations

  • 1000W is ample for single high-end GPU setups. For dual GPU or extreme overclocking, consider 1200W+.
  • Fully modular design improves airflow and simplifies cable routing. Keep spare cables organized.
  • The 12V-2x6 cable is required for RTX 40-series and later GPUs. For older cards, use the included PCIe 6+2-pin cables.
  • Although made by ASRock, this PSU is fully compatible with motherboards and GPUs from other brands. It follows standard ATX specifications.

Product Disclosure (Amazon)

  • Manufacturer: ASRock
  • Seller: Amazon.co.jp
  • Fulfilled by: Amazon.co.jp
  • Model: Steel Legend
  • ASIN: B0DPGX7B7X
  • Note: This article covers a manufacturer-made product based on Amazon listing details.