Corsair
Hydro X Series iCUE LINK XH405i RGB Custom Cooling Kit
Best custom liquid cooling kit for enthusiast PC builders.
Elevate your PC's cooling with this comprehensive custom liquid cooling kit. Designed for a stunning hardline CPU loop, it integrates seamlessly with an innovative ecosystem for simplified building and installation. Experience intelligent control and quiet operation, all while enjoying dynamic RGB lighting across multiple components for a personalized aesthetic. This all-in-one solution provides everything needed to transform your build with advanced, high-performance custom liquid cooling technology, offering a superior cooling experience.
$699.99
Owner Satisfaction
4.3
/ 5
Category Rank
3013
/ 4022
#3013 in Computer System Cooling Parts
Price vs Category Average
+389%
Above average
Cooling Type
Custom Loop Component
/ Custom Loop Component
Who it's for
- PC builders intimidated by complex custom loop cable management
- Aesthetic enthusiasts seeking a unified, software-controlled lighting setup
- Power users demanding maximum thermal headroom for overclocked systems
Who should skip it
- Hardware hobbyists who value component flexibility and open-standard compatibility
- Budget-conscious builders prioritizing cost-effective cooling solutions
- Users preferring the low-maintenance convenience of standard AIO coolers
Performance breakdown
Installation Simplicity
iCUE LINK technology drastically reduces cable clutter and assembly frustration.
Thermal Efficiency
Custom loop architecture delivers superior heat dissipation for high-end processors.
Aesthetic Customization
Dynamic RGB integration offers unmatched visual flair for enthusiast builds.
Acoustic Performance
Intelligent fan control maintains quiet operation even under heavy thermal loads.
Component Integration
Unified ecosystem ensures seamless communication between all cooling hardware.
Build Quality
Premium materials provide a robust foundation for long-term system reliability.
Key Specs
Cooling Type
Custom Loop Component
RGB Lighting
Yes
Connector Type
iCUE LINK
Color
Stealth Gray
Compatibility
CPU
Know before you buy
Yes, the XH405i is a comprehensive kit that includes the pump/reservoir, CPU block, radiator, fans, tubing, fittings, and coolant. It is designed to provide all the essential hardware required to build a complete hardline CPU cooling loop right out of the box.
iCUE LINK uses a unified connector system that allows you to daisy-chain components together with a single cable. This significantly reduces cable clutter and simplifies the wiring process, as you no longer need to manage individual power and data cables for every fan and cooling component.
The included CPU water block features a versatile mounting bracket system that supports a wide range of modern Intel and AMD sockets. Please check the specific socket compatibility list on the product page to ensure your motherboard is supported before beginning your build.
While this kit is designed to be more accessible than sourcing individual parts, it is still a custom liquid cooling solution that requires patience and careful planning. You should be comfortable with PC assembly and basic tube bending or cutting, as hardline loops require precise measurements for a leak-free installation.
Yes, the loop is modular, meaning you can add additional components like a GPU water block in the future. However, you will need to purchase the necessary extra fittings, tubing, and potentially a larger radiator or additional coolant to accommodate the added thermal load.
All lighting and performance settings are managed through Corsair’s iCUE software. Once the components are connected to the iCUE LINK hub, the software automatically detects them, allowing you to customize lighting effects and monitor pump or fan speeds in real-time.
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$700