Corsair
Corsair HX1200i 80+ Platinum ATX 3.0 PSU
★★★★★
PCIe Gen 5
Experience Ultra-Quiet and Efficient Power DeliveryThe CORSAIR HX1200i Fully Modular Ultra-Low Noise ATX Power Supply delivers exceptional 80 PLUS Platinum efficiency and quiet operation. With ATX 3.0 and PCIe 5.0 compliance, this PSU is ready for today's most demanding PC upgrades. Specification...
$319.99*
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*Price sourced from Amazon.com. Last updated:Jun 16, 2026.Price and availability are subject to change.
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Overview
Experience Ultra-Quiet and Efficient Power Delivery
The CORSAIR HX1200i Fully Modular Ultra-Low Noise ATX Power Supply delivers exceptional 80 PLUS Platinum efficiency and quiet operation. With ATX 3.0 and PCIe 5.0 compliance, this PSU is ready for today's most demanding PC upgrades.
Specifications:
- Brand: Corsair
- Model: CP-9020281-NA
- Series: HXi Series
- Type: ATX Power Supply
- Wattage: 1200W
- Efficiency: 80 Plus Platinum
- Compliance: ATX 3.0 & PCIe 5.0
- Fan: 140mm Fluid Dynamic Bearing (FDB)
- Features: Fully Modular, Ultra-Low Noise, CORSAIR iCUE Software Compatible, Zero RPM Fan Mode
Key Features
Fully Modular Cabling: Connect only the cables your system needs, making clean and tidy builds easy.
Intel ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting the PCIe Gen 5.1 platform and resisting transient power spikes.
140mm Fluid Dynamic Bearing (FDB) Fan: Delivers extremely quiet and long-lasting fan performance.
Powerful CORSAIR iCUE Software: Create custom fan curves, monitor power settings, and toggle between single to multi-rail overcurrent protection (OCP) on-the-fly.
Zero RPM Fan Mode: At low and medium loads the cooling fan switches off entirely for near-silent operation.
Specifications
Power Output
1200W
Efficiency Rating
80+ Platinum
Form Factor
ATX 3.0
Cabling Type
Fully Modular
ATX Standard Compliance
Intel ATX 3.1 Certified
PCIe Support
PCIe Gen 5.1 Platform
Fan Size
140mm
Fan Bearing Type
Fluid Dynamic Bearing (FDB)
Fan Mode
Zero RPM Fan Mode
Software Compatibility
CORSAIR iCUE Software
Overcurrent Protection (OCP)
Single to Multi-Rail Toggle via Software
Pros & Cons
👍 Pros
- Connect only necessary cables with the fully modular design for easy and clean system builds.
- Complies with Intel ATX 3.1 power standard, offering robust support for PCIe Gen 5.1 platforms.
- Engineered to resist transient power spikes, enhancing system stability and component protection.
- Equipped with a 140mm fluid dynamic bearing fan for extremely quiet and long-lasting cooling performance.
- Offers powerful CORSAIR iCUE software for custom fan curves, power monitoring, and OCP switching.
👎 Cons
- The advanced features and software integration may present a steeper learning curve for novice users.
- The 140mm fan, while quiet, still occupies significant space within a PC case, requiring proper clearance.
- Full functionality, including custom fan curves and power monitoring, relies on CORSAIR iCUE software.
- The PSU’s high wattage may be excessive for basic PC builds, potentially leading to unnecessary cost.
- Users must ensure their system components are compatible with the ATX 3.1 standard to fully leverage its benefits.
Frequently Asked Questions
What is the benefit of the fully modular cabling system?
Fully modular cabling allows you to connect only the cables your system needs, which makes for cleaner, tidier builds and improved airflow.
Is this power supply unit compatible with modern graphics cards?
Yes, it is Intel ATX 3.1 Certified, which includes support for the PCIe Gen 5.1 platform, making it compatible with modern, high-power graphics cards.
How quiet is the fan on the Corsair HX1200i?
The 140mm Fluid Dynamic Bearing (FDB) fan delivers extremely quiet performance and features a Zero RPM Fan Mode for near-silent operation at low and medium loads.
What can I do with the CORSAIR iCUE Software?
With CORSAIR iCUE Software, you can create custom fan curves, monitor power settings, and toggle between single to multi-rail overcurrent protection (OCP) on-the-fly.
Does this PSU offer protection against power fluctuations?
Yes, it is compliant with the ATX 3.1 power standard, which means it is designed to resist transient power spikes, enhancing system stability.
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