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Rectangular black ATX power supply with 135mm fan and modular cable sockets

Corsair

Corsair HX1200 CP-9020140-NA 1200 W power supply

SKU CH-FQ3P-35XNG MPN CP-9020140-NA

Fully modular 1200 W ATX power supply with 80 PLUS Platinum efficiency, a single 135 mm fluid dynamic bearing fan, and eight 6+2-pin PCIe connectors

  • TypeATX12V v2.4 / EPS12V 2.92
  • Maximum Power1200 W
  • Fans1 x 135mm fluid dynamic bearing fan
  • Main Connector24Pin
  • +12V RailsSingle +12V Rail or Multi +12V Rail Mode
  • PCI-Express Connector8 x 6+2-Pin

Options ATX 80+ Platinum (1200W) HX Series

  • Delivers stable 1200 W for demanding builds
  • 80 PLUS Platinum certification reaches 90 % efficiency
  • Fully modular cables simplify case routing
  • 135 mm fluid dynamic bearing fan runs quietly
  • Ten-year warranty reflects long-term reliability

1200 W Platinum Power Supply

The Corsair HX1200 CP-9020140-NA is a fully modular ATX unit rated for 1200 W continuous output. It carries 80 PLUS Platinum certification for up to 90 % efficiency at typical loads. The 135 mm fluid dynamic bearing fan runs quietly under low demand.

Suits High-End Multi-GPU Builds

This unit fits systems drawing near its 1200 W limit, such as workstations or enthusiast rigs with multiple high-power graphics cards. Builds requiring less headroom may prefer a smaller unit to avoid unnecessary capacity.

Single or Multi +12 V Rail Switch

A hardware switch selects between single-rail mode delivering 100 A on the +12 V line and multi-rail mode splitting current across eight rails rated at 40 A each. Choose the mode that matches your over-current protection strategy.

Highlights

  • Delivers stable 1200 W for demanding builds
  • 80 PLUS Platinum certification reaches 90 % efficiency
  • Fully modular cables simplify case routing
  • 135 mm fluid dynamic bearing fan runs quietly
  • Ten-year warranty reflects long-term reliability

Specifications

BrandCORSAIR
SeriesHX Series HX1200
ModelCP-9020140-NA
TypeATX12V v2.4 / EPS12V 2.92
Maximum Power1200 W
Fans1 x 135mm fluid dynamic bearing fan
Main Connector24Pin
+12V RailsSingle +12V Rail or Multi +12V Rail Mode
PCI-Express Connector8 x 6+2-Pin
SATA Power Connector8
Haswell SupportYes
Max PSU Length200 mm
ModularFull Modular
Energy-Efficient80 PLUS PLATINUM Certified
Over Voltage ProtectionYes
Input Voltage100 - 240 V
Input Frequency Range47 - 63 Hz
Input Current15 - 7.5 A
OutputSingle +12V Rail Mode:
+3.3V@30A, +5V@30A, +12V@100A, [email protected] , [email protected]
Multiple +12V Rail Mode:
+3.3V@30A, +5V@30A, +12V1@40A, +12V2@40A, +12V3@40A, +12V4@40A, +12V5@40A, +12V6@40A, +12V7@40A, +12V8@40A, [email protected] , +5VSB@3A
ApprovalsFCC, ICES, CE, UL, cUL, RCM, TUV, CB, CCC, BSMI, EAC, RoHS, WEEE, KC
Connectors1 x 24-pin ATX Cable
2 x 1 x EPS12V/ATX12V Cable (4+4)
4 x 2 x PCIe Cable (6+2)
5 x 4 x SATA Cable (4 Connectors)
2 x 4 x PATA Cable (4 connectors)
FeaturesActive PFC with full range AC input (100-240 VAC)
135mm fluid dynamic bearing fan with Zero RPM mode
Engineered to meet maximum power output at a 50 degree C temperature rating.
Compatible with the latest ATX12V v2.4 and EPS 2.92 standards and is backward compatible with ATX12V 2.2, 2.31 and older systems.
Over-voltage protection, under-voltage protection, short circuit protection, over power protection, and over temperature protection provide maximum safety to your critical system components.
Dimensions3.39" x 5.91" x 7.87"
Weight5.07 lbs.
Shipping weight4.60 kg
Package size394 × 229 × 152 mm

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Questions about this item

What motherboard power connector does the CP-9020140-NA require to function?

The PSU supplies a 24Pin ATX connector for the motherboard main power input and an EPS12V 2.92 connector for the CPU power input. Both must be attached for the system to start.

Will the 135mm fluid dynamic bearing fan stay quiet when paired with an older graphics card that draws less power?

Yes. The fan runs in Zero RPM mode at low loads, so it remains off until internal temperature rises, regardless of whether the GPU is a modern or legacy model.

How can I verify the 80 PLUS PLATINUM efficiency is active after installation?

Use software such as HWMonitor or Corsair Link to read the PSU's reported input and output wattage; a ratio at or above 90% under typical load confirms Platinum-level operation.

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