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Black rectangular ATX 3.1 PSU with 135mm striped axial FDB fan

ASRock

ASRock SL-1200P 1200W ATX 3.1 power supply

SKU CH-BPQT-86RVS MPN SL-1200P

Delivers 1200 W through an ATX 3.1 fully modular design with dual 12V-2x6 connectors, 80 PLUS Platinum and Cybenetics Platinum efficiency, plus a 135 mm FDB fan that stops under light load

  • ColorBlack
  • TypeATX 3.1
  • Maximum Power1200 W
  • Fans135mm Striped Axial FDB Fan
  • Energy-Efficient80 PLUS PLATINUM Certified
  • ProtectionOCP, SCP, OVP, UVP, OTP, OPP

Options PLATINUM 1200W

  • 1200 W output powers demanding builds
  • 80 PLUS Platinum and Cybenetics Platinum efficiency cuts waste heat
  • Fully modular cables keep the interior tidy
  • Native 12V-2x6 connectors with TempGuard protect graphics cards
  • 135 mm FDB fan with iCool mode runs silently at low load

1200 W ATX 3.1 power supply

The ASRock SL-1200P delivers 1200 W of continuous power through a fully modular ATX 3.1 design. It carries 80 PLUS Platinum and Cybenetics Platinum efficiency ratings plus Lambda A acoustic certification. The unit targets builders of high-end workstations or multi-GPU systems that need reliable, low-noise delivery.

Upgrade from lower-wattage or pre-ATX 3.0 units

Replacing a supply below 1000 W or one lacking native 12V-2x6 connectors removes the need for adapter cables and enables full PCIe 5.1 graphics support. The efficiency jump from Gold to Platinum reduces waste heat, and the semi-passive iCool mode cuts fan noise at typical desktop loads. The change is worthwhile when the new GPU or CPU pushes sustained draw past the old unit’s comfort zone.

Verify case depth, cable routing and AC input

The chassis measures 150 mm deep, so confirm the case allows at least that length plus cable bend radius. Ensure the motherboard has both a 24-pin and an 8-pin or 4+4-pin EPS socket for the included cables. The AC inlet accepts 100 to 240 V at 50 or 60 Hz, matching most mains supplies worldwide.

Highlights

  • 1200 W output powers demanding builds
  • 80 PLUS Platinum and Cybenetics Platinum efficiency cuts waste heat
  • Fully modular cables keep the interior tidy
  • Native 12V-2x6 connectors with TempGuard protect graphics cards
  • 135 mm FDB fan with iCool mode runs silently at low load

Specifications

BrandASRock
ModelSL-1200P
ColorBlack
TypeATX 3.1
Maximum Power1200 W
Fans135mm Striped Axial FDB Fan
Energy-Efficient80 PLUS PLATINUM Certified
ProtectionOCP, SCP, OVP, UVP, OTP, OPP
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
ConnectorsMotherboard cable (24pin): 1
EPS 12V CPU connectors (4+4pin): 1
EPS 12V CPU connectors (8pin): 1
PCIe5.1 connectors(12+4pin) Dual Color: 2
PCIe connectors (6+2pin): 2
PCIe connectors (8pin): 1
4-pin Peripheral connectors: 3
SATA 5-pin connectors: 9
Dimensions150mm x 150mm x 86mm
Shipping weight3.61 kg
Package size302 × 196 × 132 mm

Other versions of this model

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Questions about this item

Will the 150mm x 150mm x 86mm chassis fit a standard ATX case?

The unit follows the ATX 3.1 form factor at 150mm wide, 150mm deep and 86mm high, so it fits any case built for a standard ATX supply.

How do I connect the 12V-2x6 cables and what is the common mistake?

Plug each native 12V-2x6 cable fully into the GPU until the green indicator on the connector is hidden; the frequent error is leaving a gap that triggers the NTC over-temperature sensor.

When should I clean or replace the 135mm FDB fan?

The fluid-dynamic-bearing fan is rated for long life; clean dust from the blades and grille once a year with compressed air and replace only if bearing noise appears.

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