Corsair CX-9070008-WW Hydro X Series iCUE XH305i RGB PRO Cooling Kit

The Corsair Hydro X Series iCUE XH305i RGB PRO Custom Cooling Kit is designed to give PC builders a complete, curated set of components for constructing a high-performance hardline liquid cooling loop. The kit centers around the XC7 RGB PRO CPU water block, which makes direct contact with the CPU for efficient heat transfer, paired with the XD5 pump/reservoir combo that drives coolant through the system with the reliable performance of a D5 pump motor. An included radiator dissipates heat from the loop, cooled by three RGB fans that balance airflow and acoustics. All components feature individually addressable RGB LEDs that can be synchronized and customized through Corsair's iCUE software for a cohesive visual effect throughout the build.

What sets this kit apart from buying components individually is the completeness of the package. It includes hardline PMMA tubing, compression fittings, a tube-bending toolkit with mandrels and a silicone insert, coolant, and even extra fittings earmarked for future GPU cooling expansion. A temperature sensor is included with the pump/reservoir, allowing iCUE to automatically adjust pump and fan speeds based on actual coolant temperature — balancing thermal performance against noise output without manual intervention. While the installation process is more involved than a closed-loop AIO and requires a heat gun for tube bending, the XH305i kit reduces the complexity by ensuring all parts are compatible and providing the tools needed to complete the build.