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Corsair AX1200i full modular ATX power supply with 140mm fan

Corsair

Corsair CP-9020008-NA AX1200i 1200 W power supply

SKU CH-CBAK-GVF80 MPN CP-9020008-NA

Digital 1200 W ATX power supply with 80 PLUS Platinum efficiency, full modular cables, 140 mm fan and Corsair Link monitoring

  • TypeDigital ATX12V v2.31 and EPS 2.92
  • Maximum Power1200 W
  • Fans1 x 140mm Dual Ball Bearing Fan
  • PFCActive
  • Main Connector24Pin
  • +12V RailsSingle

Options ATX 80+ Platinum (1200W)

  • 80 PLUS Platinum efficiency saves energy with up to 92% conversion
  • Full modular cabling keeps builds tidy using only the 16 SATA and 8 PCIe connectors needed
  • Digital DSP control delivers tight voltage regulation across the single 12 V rail
  • 140 mm dual ball-bearing fan runs quietly while cooling the 1200 W unit
  • Corsair Link USB monitoring gives real-time power and fan-speed data from the PSU

Digital control and monitoring

The Corsair AX1200i is a 1200 W fully modular ATX power supply that uses a DSP for real-time voltage regulation and Corsair Link software monitoring. It is built for high-end multi-GPU systems that need precise, software-controlled power delivery.

Platinum efficiency and voltage limits

The unit meets 80 PLUS PLATINUM certification with up to 92% efficiency across the 100–240 V input range. The single +12 V rail design and digital regulation keep output within tight tolerances defined by the ATX12V v2.31 and EPS 2.92 standards.

Full modular cabling and USB link

All cables detach so only required leads are installed, reducing clutter in cases that accept a 200 mm deep unit. The USB connection to a motherboard header enables Corsair Link monitoring; forgetting this cable or the software install is the most common reason telemetry appears missing.

Highlights

  • 80 PLUS Platinum efficiency saves energy with up to 92% conversion
  • Full modular cabling keeps builds tidy using only the 16 SATA and 8 PCIe connectors needed
  • Digital DSP control delivers tight voltage regulation across the single 12 V rail
  • 140 mm dual ball-bearing fan runs quietly while cooling the 1200 W unit
  • Corsair Link USB monitoring gives real-time power and fan-speed data from the PSU

Specifications

BrandCORSAIR
SeriesAXi series
ModelAX1200i
TypeDigital ATX12V v2.31 and EPS 2.92
Maximum Power1200 W
Fans1 x 140mm Dual Ball Bearing Fan
PFCActive
Main Connector24Pin
+12V RailsSingle
PCI-Express Connector8 x 6+2-Pin
SATA Power Connector16
SLISLI Ready
Haswell SupportYes
CrossFireCrossFire Ready
Max PSU Length200 mm
ModularFull Modular
EfficiencyUp to 92%
Energy-Efficient80 PLUS PLATINUM Certified
Over Voltage ProtectionYes
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Input Current15A
Output+3.3V@30A, +5V@30A, [email protected] , [email protected] , [email protected]
MTBF100,000 hours
ApprovalscTUVus, CE, CB, FCC Class B, TUV, CCC, C-tick
Connectors1 x ATX Connector
2 x EPS Connector
8 x PCI-E Connector
12 x 4-Pin Peripheral
16 x SATA
2 x Floppy
FeaturesDigital Signal Processor (DSP) for delivering extremely clean, efficient power with real-time adjustments.
Corsair Link Integration for monitoring and adjustment of performance, noise, and OCP settings.
80 PLUS Platinum Efficiency for lower power usage and energy costs.
Fanless operation at low loads, for outstanding noise reduiction.
140mm thermally controlled double-ball bearing fan spins up as needed.
Fully Modular low profile cables for easy installation and less clutter.
Engineered to meet maximum power output at a server-grade 50 Celsius degree temperature rating.
Self-test swi
Dimensions3.39" x 5.91" x 7.87"
Weight8.80 lbs.
Shipping weight4.85 kg
Package size394 × 226 × 152 mm

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Questions about this item

Which capacity in the AXi series should I pick for a multi-GPU build?

The AX1200i delivers 1200 W from a single +12 V rail and includes eight 6+2-pin PCIe connectors, so it can feed several high-end graphics cards without needing a second unit.

What does the 92 % efficiency figure mean once the unit is installed?

At typical loads the PSU converts at least 92 % of AC input into DC output, so less energy becomes heat and the 140 mm fan can run more quietly.

What digital interface does the AX1200i use and what does it control?

A USB link to the motherboard header lets Corsair Link software monitor voltages, fan speed and power draw in real time and adjust the fan profile.

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