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ASRock Steel Legend SL-1200GW 1200W 80 Plus Gold & Cybenetics Platinum Full Modular Power Supply ATX3.1 PCIe5.1 Ready with Dual Color 12V-2x6 Cable 10 Years Warranty White Edition Japanese Capacitor
ASRock

ASRock Steel Legend SL-1200GW 1200W 80 Plus Gold & Cybenetics Platinum Full Modular Power Supply ATX3.1 PCIe5.1 Ready with Dual Color 12V-2x6 Cable 10 Years Warranty White Edition Japanese Capacitor

Bottom line: The ASRock Steel Legend SL-1200GW 1200W 80 Plus Gold & Cybenetics: Native 12V-2x6 connector, ATX 3.1 and PCIe 5.1 ready for current-gen GPUs; main trade-off: ASRock lists it as not compatible with all prebuilt or OEM systems.

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By , Founder & Editor-in-Chief · Listing data updated

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

  • ✓ Native 12V-2x6 connector, ATX 3.1 and PCIe 5.1 ready for current-gen GPUs
  • ✓ 1200W headroom leaves room for a flagship GPU plus overclocked CPU
  • ✓ Cybenetics Platinum efficiency and Lambda A-rated for near-silent operation
  • ✓ 135mm striped axial FDB fan with iCool control spins down at low load
  • ✓ 10-year warranty backed by 100% Japanese capacitors

Cons

  • ✗ ASRock lists it as not compatible with all prebuilt or OEM systems
  • ✗ 1200W is overkill for mid-range builds that draw well under 600W
  • ✗ White finish limits color matching in an all-black build
  • ✗ Dual-color 12V-2x6 cable design assumes you check seating on every install

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SpecPicks Verdict

SpecPicks scored ASRock Steel Legend SL-1200GW 1200W 80 Plus Gold & Cybenetics… 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

  • ***Not compatible with all built-in computers or systems
  • ✅ Dual Premium Certification: 80 PLUS Gold efficiency & Cybenetics Platinum/Lambda A-rated for top-tier energy savings and ultra-low noise.
  • ⚡ Next-Gen Ready: Fully compliant with ATX3.1 and PCIe 5.1 standards, featuring a native 12V-2x6 connector for next-gen GPUs.
  • 🔌 Fully Modular Design: Customizable cable management with 100% Japanese capacitors ensuring extreme durability.
  • 🌬️ Advanced Cooling: 135mm Striped Axial FDB fan with iCool Intelligent Fan Control for near-silent operation.
  • 🔋 10-Year Warranty: Decade of reliability with built-in 5V BOOST for enhanced RGB control.

Full Specifications

BrandASRock
Wattage1200 watts
Model NameSL-1200GW
Form FactorATX
Model Number90-UXS120-GFUABA
Connector TypeATX, PCI Express
Cooling MethodAir
Number of Fans1
Output Wattage1200 watts
Item Dimensions5.9 x 5.9 x 3.39 inches
Mfr Part Number90-UXS120-GFUABA
Number of Items1
Compatible DevicesPersonal Computer
⚡ Next-Gen ReadyFully compliant with ATX3.1 and PCIe 5.1 standards, featuring a native 12V-2x6 connector for next-gen GPUs.
Power Supply DesignFull Modular
Warranty Description10 years
Maximum Input Voltage240 volts_of_alternating_current
🔋 10-Year WarrantyDecade of reliability with built-in 5V BOOST for enhanced RGB control.
🌬️ Advanced Cooling135mm Striped Axial FDB fan with iCool Intelligent Fan Control for near-silent operation.
Item dimensions L x W x H5.9 x 5.9 x 3.39 inches

Ready to buy?

ASRock Steel Legend SL-1200GW 1200W 80 Plus Gold & Cybenetics Platinum Full Modular Power Supply ATX3.1 PCIe5.1 Ready with Dual Color 12V-2x6 Cable 10 Years Warranty White Edition Japanese Capacitor 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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ASRock Steel Legend SL-1200GW 1200W 80 Plus Gold & Cybenetics Platinum Full Modular Power Supply ATX3.1 PCIe5.1 Ready with Dual Color 12V-2x6 Cable 10 Years Warranty White Edition Japanese Capacitor
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