Corsair
HX1200
Best high-capacity power supply for demanding enthusiast gaming rigs.
The CORSAIR HX1200 is a powerful 1200W ATX power supply, perfect for high-demand PC builds and intense gaming. It boasts 80 Plus Platinum efficiency for reliable performance and a fully modular design that simplifies installation and improves airflow. Enjoy exceptionally quiet operation, even under load. This PSU offers flexible power delivery with a switchable multi-rail or single-rail mode and comes with a substantial 10-year warranty for long-term peace of mind.
$299.99
Owner Satisfaction
4.7
/ 5
Category Rank
28
/ 1062
#28 in Computer Power Supplies
Price vs Category Average
-68%
Below average
Wattage Output
1200
/ W
Who it's for
- Eco-conscious builders seeking lower electricity bills and reduced heat
- Extreme enthusiasts running multi-GPU setups or heavy overclocking
- Clean-build enthusiasts prioritizing tidy cable management and airflow
Who should skip it
- Budget-focused builders looking for better value per watt
- Compact PC owners with limited chassis space for large units
- Average gamers who only need standard power for single-GPU systems
Performance breakdown
Power Capacity
Handles extreme multi-GPU setups and overclocked CPUs with effortless headroom.
Energy Efficiency
Platinum certification ensures minimal power waste during high-intensity computing sessions.
Cable Management
Fully modular design keeps your case interior clean and airflow optimized.
Acoustic Performance
Whisper-quiet operation maintains a peaceful environment even under heavy system loads.
Configuration Flexibility
Switchable rail modes provide tailored power delivery for specialized hardware needs.
Long-term Reliability
A decade-long warranty offers genuine peace of mind for your investment.
Key Specs
Wattage Output
1200W
Efficiency Rating
80 Plus Platinum
Form Factor
ATX
Modularity
Fully Modular
Model Number
CP-9020140-NA
Noise Level
Super quiet
Warranty
10 years
Number of PCIe Connectors
6
Features
- Delivers 1200W continuous power
- Fully modular for easy cable management
- Switchable multi-rail or single-rail mode
- Exceptionally quiet operation
- 80 Plus Platinum certified efficiency
- Includes 6 PCIe connectors
- Robust 10-year warranty
What customers say
The Corsair HX1200 is highly regarded as a benchmark power supply for demanding PC builds, earning praise primarily for its exceptional reliability and stability. Users value the robust power delivery, supported by high-quality components and 80 PLUS Platinum efficiency, which ensures consistent system performance even under heavy loads. A significant benefit is the fully modular cabling, simplifying installation and cable management for builders. Furthermore, the Zero RPM fan mode contributes to a quieter computing experience during low usage. While priced at a premium, the consensus is that the investment is justified by the industry leading ten year warranty and dependable, long term operation. This unit is viewed as a top tier, durable, and efficient solution.
Know before you buy
This feature allows you to toggle between a single high-amperage rail, which is ideal for high-performance gaming builds, or a multi-rail mode that provides individual over-current protection for each connector, adding an extra layer of safety for your components.
1200W is substantial and more than enough for most high-end enthusiast builds, including those running multiple GPUs or overclocked processors. It provides plenty of headroom to ensure your system remains stable under heavy, sustained workloads.
Being fully modular means every cable can be detached from the power supply. You only need to plug in the specific cables your components require, which significantly reduces clutter inside your case and improves overall airflow.
Yes, the HX1200 is engineered for exceptionally quiet operation. Its internal fan is designed to stay silent during low to moderate loads, making it an excellent choice for users who prioritize a quiet computing environment.
The 80 Plus Platinum rating indicates that this unit is highly efficient, converting more power from your wall outlet into usable energy for your PC while wasting less as heat. This efficiency helps lower your power consumption and reduces the strain on your cooling system.
Yes, the HX1200 includes 6 PCIe connectors, providing ample connectivity for multi-GPU setups or high-end graphics cards that require multiple power inputs.
Still have a question?
Ask Hayley anything about this product before you decide.