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ASRock Steel Legend SL-1000P 1000W ATX Power Supply, 80 Plus Platinum, ATX3.1 & PCIe 5.1 Ready, Fully Modular, 135mm FDB Fan, 10-Year Warranty Lambda A+
ASRock

ASRock Steel Legend SL-1000P 1000W ATX Power Supply

Bottom line: The ASRock Steel Legend SL-1000P 1000W ATX Power Supply is a specs-and-price decision rather than a crowd-consensus one in the power supplies category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Backed by ASRock's warranty and support channels

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The ASRock Steel Legend SL-1000P is a premium 1000W power supply engineered to be the reliable heart of any high-performance PC build. Certified 80 Plus Platinum and Cybenetics Platinum, it delivers outstanding electrical efficiency for cooler, quieter operation and reduced energy consumption. Ready for the latest hardware, it meets ATX3.1 and PCIe 5.1 standards and includes a native 12V-2x6 connector with advanced TempGuard technology, providing a safe and robust power foundation for next-generation graphics cards and components. Built with uncompromising quality, it utilizes top-tier 100%…

SpecPicks Verdict

SpecPicks scored ASRock Steel Legend SL-1000P 1000W ATX Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. ASRock's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • High-Performance 1000W Power: Delivers robust and stable wattage for high-end gaming PCs, workstations, and overclocked systems with power-hungry components.
  • Premium 80 Plus Platinum Efficiency: Certified for exceptional energy efficiency (Cybenetics Platinum), minimizing heat generation and lowering electricity costs.
  • ATX3.1 & PCIe 5.1 Ready: Fully compliant with the latest standards, featuring a native, safer 12V-2x6 connector with TempGuard technology for next-generation GPUs.
  • Intelligent 12V-2x6 Connector: The Dual Color 12V-2x6 connector incorporates TempGuard to prevent overheating and ensure a secure, reliable connection.
  • Premium Japanese Capacitors: Built with 100% high-reliability Japanese capacitors for maximum stability, durability, and consistent performance under heavy loads.
  • Quiet 135mm FDB Fan Cooling: Features a large 135mm Striped Axial Fluid Dynamic Bearing fan with iCool intelligent fan control for optimal airflow with minimal acoustic footprint.

Full Specifications

BrandASRock
Wattage1000 watts
Model NameSL-1000P
Form FactorATX
Model Number90-UXS100-PFUAAA
CompatibilityPC
Connector TypeATX, PCI Express
Cooling MethodAir
Number of Fans1
Output Wattage1000 watts
Item Dimensions5.91 x 5.91 x 3.39 inches
Mfr Part NumberPS-SL-1000P
Compatible DevicesPersonal Computer
Power Supply DesignFull Modular
Warranty Description10 years
Maximum Input Voltage240 volts_of_alternating_current
Minimum Input Voltage100 volts_of_alternating_current
ATX3.1 & PCIe 5.1 ReadyFully compliant with the latest standards, featuring a native, safer 12V-2x6 connector with TempGuard technology for next-generation GPUs.
Item dimensions L x W x H5.91 x 5.91 x 3.39 inches
System Bus Connector TypeATX
Full listing titleASRock Steel Legend SL-1000P 1000W ATX Power Supply, 80 Plus Platinum, ATX3.1 & PCIe 5.1 Ready, Fully Modular, 135mm FDB Fan, 10-Year Warranty Lambda A+

Ready to buy?

ASRock Steel Legend SL-1000P 1000W ATX Power Supply, 80 Plus Platinum, ATX3.1 & PCIe 5.1 Ready, Fully Modular, 135mm FDB Fan, 10-Year Warranty Lambda A+ is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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