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Black rectangular ATX power supply with 140 mm fan and modular cable sockets

Corsair

Corsair CP-9020307-NA HX1200i 1200 W ATX 3.1 power supply

SKU CH-P0KJ-3YQHJ MPN CP-9020307-NA

Fully modular 1200 W ATX 3.1 unit with 80 PLUS Platinum efficiency, a 140 mm fluid dynamic bearing fan, Zero RPM mode and iCUE software control

  • Max wattage1200 W
  • Power efficiency> 90%
  • Modular cablingFull Modular
  • Fan configuration1 × 140 mm
  • Main power connector24Pin
  • PCIe power connectors5 × 8-pin

Model ATX 3.1 80+ Platinum (1200W)

  • 1200 W continuous power for demanding builds
  • ATX 3.1 and PCIe 5.1 compliant for modern platforms
  • 92 % efficiency reduces waste heat and noise
  • 140 mm fluid dynamic bearing fan with Zero RPM mode
  • Fully modular cables keep the interior clean

1200 W ATX 3.1 Power Supply

The Corsair HX1200i delivers 1200 W of continuous power through a fully modular design. It targets builders of high-end workstations and multi-GPU systems who need reliable output and clean cable management. ATX 3.1 compliance ensures compatibility with modern PCIe 5.1 graphics cards and Intel platforms. The unit includes a native 12V-2x6 cable for direct GPU connection.

Sustained Load Behaviour

Industrial-grade 105°C Japanese electrolytic capacitors maintain stable voltage during extended heavy workloads. The power supply holds 80 PLUS Platinum certification with up to 92% efficiency across typical operating ranges. iCUE software allows on-the-fly switching between single-rail and multi-rail overcurrent protection modes. MTBF is rated at 100,000 hours for long-term dependability.

Thermals, Noise and Power Draw

A 140 mm fluid dynamic bearing fan runs in Zero RPM mode at low to medium loads for near-silent operation. Cybenetics A noise certification confirms quiet acoustic output under normal use. High efficiency reduces waste heat, keeping internal temperatures lower during typical gaming or productivity sessions. The fan curve is fully customisable through iCUE for precise thermal control.

How it compares

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

Price $269.99
Pricier than about 74% 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
Model nameCP-9020307-NA
Part numberCP-9020307-NA
Product colorBlack
Product typeATX 3.1
Graphics
SLI supportYes
Ports & slots
PCIe power connectors5 × 8-pin
SATA power connectors8 connectors
Connection types6 x PATA, 8 x SATA, 2 x EPS, 5 x PCIe, 1 x ATX
12V power connector2 × 8 pin eps 12v, 5 × 6/8 pin pcie 12v
Floppy connector0 connectors
Peripheral connector14 connectors
Power
Max wattage1200 W
Power efficiency> 90%
Modular cablingFull Modular
Main power connector24Pin
Efficiency certificationUp to 92% efficiency
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current15A-7.5A
Rated power1200 W
+5V max. current25A
+5VSB max. current3A
Size & build
Top fans size140 mm
Rear fans size140 mm
Shipping weight4.99 kg
Package size343 × 236 × 127 mm
In the box
Fans total quantity1
Environment & compliance
PSU noise ratingCybenetics A
More details
Fan configuration1 × 140 mm
Mean time between failures100,000 h
Top fans bearing typeFluid Dynamic Bearing
Rear fans bearing typeFluid

Other versions of this model

5 more in the same range

Questions about this item

How loud is the 140 mm fluid dynamic bearing fan when the HX1200i runs continuously at high load?

The unit carries a Cybenetics A noise rating and a Zero RPM mode that keeps the fan off at low to medium loads, so sustained high-load operation stays very quiet.

Which cables must I already have to use the fully modular CP-9020307-NA in my build?

No cables are required beforehand; the PSU ships with every modular cable needed — 24-pin ATX, two EPS, five PCIe, eight SATA and six PATA — so you connect only what your system uses.

Will the 12V-2x6 connector on this ATX 3.1 unit work with my older graphics card that uses standard 8-pin PCIe plugs?

Yes. The supply includes five 6/8-pin PCIe cables that fit both older 8-pin cards and the newer 12V-2x6 interface, so existing GPUs work without adapters.

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