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Rectangular black metal ATX power supply unit with a 140mm fan grill on one side and modular cable ports on the rear face

Corsair

Corsair CP-9020070-NA HX1200i 1200W 80 PLUS PLATINUM power supply

SKU CH-1C64-FHZ62 MPN CP-9020070-NA

A 1200 W fully modular ATX power supply with 80 PLUS Platinum efficiency, a single +12 V rail, eight PCIe connectors, twelve SATA connectors and a 140 mm fluid dynamic bearing fan that stops at low

  • Max wattage1200 W
  • Power efficiency92%
  • Modular cablingFull Modular
  • Fan configuration1 × 140 mm Fluid Dynamic Bearing Fan
  • Power factor correctionActive
  • Main power connector20+4Pin

Model ATX 80+ Platinum (1200W) HXi Series

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  • 1200 W output supports multi-GPU builds with eight 6+2-pin PCIe connectors
  • 92% efficiency at typical loads backed by 80 PLUS PLATINUM certification
  • Zero RPM mode keeps the 140 mm fluid-dynamic-bearing fan off at low loads
  • Full modular cabling reduces clutter and improves chassis airflow
  • Corsair Link USB 2.0 interface enables software monitoring and fan-speed control

1200W 80 PLUS PLATINUM ATX supply

The Corsair HXi Series HX1200i is a fully modular ATX12V and EPS12V power supply rated at 1200 watts. It carries 80 PLUS PLATINUM certification for 92% efficiency at typical loads. A 140mm fluid dynamic bearing fan supports ZeroRPM mode for silent running at low demand. Corsair Link integration provides monitoring and fan-speed control via a USB 2.0 interface.

High-output builds needing full modularity

This unit suits enthusiasts assembling multi-GPU rigs or workstations that can draw several hundred watts from the +12V rail. The single-rail design simplifies cable planning while delivering up to 100A on +12V. Builds with modest power requirements will not benefit from the headroom and may prefer a lower-wattage model.

Single +12V rail rated at 100A

The defining specification is the single +12V rail capable of 100A continuous output. If your graphics cards and CPU combined demand approaches that limit, this supply delivers the current without rail-balancing concerns. If the total +12V draw stays well below that figure, a smaller unit will be more cost-effective.

How it compares

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

Price $417.99
Pricier than about 86% 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 lineHXi Series HX1200i
Model nameCP-9020070-NA
Product typeATX12 V / EPS12 V
Graphics
SLI supportReady
CrossFire supportReady
Ports & slots
PCIe power connectors8 × 6+2-Pin
SATA power connectors12
Output type+3.3 V@30A, +5 V@30A, +12 V@100A
Connection types1 x ATX Connector
2 x EPS Connector
2 x Floppy Connector
12 × 4-Pin Peripheral Connector
8 x PCIe Connector
12 x SATA Connector
Power
Max wattage1200 W
Power efficiency92%
Modular cablingFull Modular
Power factor correctionActive
Main power connector20+4Pin
12V railsSingle
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 weight8.4 lb (3.81 kg)
Shipping weight4.58 kg
Package size396 × 229 × 152 mm
Compatibility
Haswell compatibilityYes
PSU length limit200 mm
Environment & compliance
Regulatory approvalsFCC, ICES, CE, UL / CUL, CSA, C-Tick/RCM, TUV, CB, CU, KC Mark, RoHS, WEEE, RoHS (China), REACH
More details
Fan configuration1 × 140 mm Fluid Dynamic Bearing Fan
Mean time between failures100,000 h

Other versions of this model

5 more in the same range

Questions about this item

Which capacity should I pick for a multi-GPU build?

The unit delivers 1200 W on a single +12 V rail rated at 100 A and provides eight 6+2-pin PCIe connectors, so one model covers SLI or CrossFire configurations without needing a second PSU.

What does the 80 PLUS Platinum rating mean once the supply is installed?

It guarantees 92 % efficiency at typical loads, which lowers waste heat and keeps the 140 mm fluid-dynamic-bearing fan off completely during light work thanks to ZeroRPM mode.

What interface does the monitoring link use and what does it control?

A USB 2.0 port connects to Corsair Link software, letting you watch voltages, adjust the fan curve and switch between single-rail and multi-rail operation from Windows.

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