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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

  • Max wattage1200 W
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm fluid dynamic bearing fan
  • Main power connector24Pin
  • 12V railsSingle +12 V Rail or Multi +12 V Rail Mode
  • PCIe power connectors8 × 6+2-Pin

Model ATX 80+ Platinum (1200W) HX Series

Show 3 more
  • 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.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $250.99
Pricier than about 72% of the 10,869 comparable items (median $142.99).
Max wattage 1200 W
Higher than about 90% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameCORSAIR
Product lineHX Series HX1200
Model nameCP-9020140-NA
Product typeATX12 V v2.4 / EPS12 V 2.92
Ports & slots
PCIe power connectors8 × 6+2-Pin
SATA power connectors8
Output typeSingle +12 V Rail Mode:
+3.3 V@30A, +5 V@30A, +12 V@100A,Multiple +12 V Rail Mode:
+3.3 V@30A, +5 V@30A, +12V1@40A, +12V2@40A, +12V3@40A, +12V4@40A, +12V5@40A, +12V6@40A, +12V7@40A, +12V8@40A, +5VSB@3A
Connection types1 × 24-pin ATX Cable
2 × 1 x EPS12 V/ATX12 V Cable (4+4)
4 × 2 x PCIe Cable (6+2)
5 × 4 x SATA Cable (4 Connectors)
2 × 4 x PATA Cable (4 connectors)
Power
Max wattage1200 W
Modular cablingFull Modular
Main power connector24Pin
12V railsSingle +12 V Rail or Multi +12 V Rail Mode
Efficiency certification80 PLUS PLATINUM Certified
Overvoltage protectionYes
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current15–7.5 A
Size & build
Product dimensions3.39 in × 5.91 in × 7.87 in
Product weight5.07 lb (2.3 kg)
Shipping weight4.60 kg
Package size394 × 229 × 152 mm
Compatibility
Haswell compatibilityYes
PSU length limit200 mm
Environment & compliance
Regulatory approvalsFCC, ICES, CE, UL, cUL, RCM, TUV, CB, CCC, BSMI, EAC, RoHS, WEEE, KC
More details
Fan configuration1 × 135 mm fluid dynamic bearing fan

Other versions of this model

5 more in the same range

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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