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Corsair iCUE XH300i RGB Custom Liquid Cooling Kit — main product image
Corsair

Corsair iCUE XH300i RGB Custom Liquid Cooling Kit

Build a stunning custom cooling loop with everything included — RGB water block, pump, radiator, fans, and controller in one kit.

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Overview

The Corsair Hydro X Series iCUE XH300i RGB Custom Cooling Kit is designed to be a comprehensive entry point into custom liquid cooling, bundling a full set of matched components so builders don't have to research compatibility across multiple brands. The kit centers around the XC7 RGB CPU water block for Intel 115X and AMD AM4 platforms, paired with the XD5 RGB pump-reservoir combo that provides reliable flow and a striking visual element with its integrated RGB lighting and visible coolant chamber. Cooling is handled by an XR5 360mm radiator — a slim, high-density design that fits in most mid-tower and full-tower cases with 360mm radiator support.

On the airflow side, three Corsair LL120 RGB fans deliver both effective static pressure for radiator use and vivid dual-loop RGB lighting. Tying everything together is the iCUE Commander PRO, which connects to Corsair's iCUE software for unified control of fan speeds, pump operation, and lighting effects across all kit components. The included XL5 Performance Coolant is pre-mixed and ready to pour, rounding out a kit that genuinely includes everything needed to build a CPU cooling loop from scratch — minus a GPU block, which remains an optional add-on for those wanting to extend the loop to their graphics card.

Key Features

Make Your PC a Masterpiece: A complete Hydro X Series RGB hardline custom cooling kit gives your system an elegant distinctive look

Push Your System Further: High level cooling performance is coupled with effectively quiet operation, intelligently controlled with an included temperature sensor

Easy Installation and Software Setup: Get up and running quickly with the option for automated control to set your fan and pump speeds to their lowest possible noise level

Dynamic RGB LED Lighting: Individually addressable LEDs integrated into the CPU water block, pump/reservoir and CORSAIR LL120 cooling fans gives your PC a striking look to stand out from the crowd

Complete Software Control: An iCUE Commander PRO and powerful CORSAIR iCUE software let you adjust fan and pump settings, customise RGB lighting and synchronize it with all iCUE-compatible products

Specifications

CPU Water Block
XC7 RGB (Intel 115X / AMD AM4)
Pump/Reservoir
XD5 RGB
Radiator
XR5 360mm
Fans
3 x LL120 RGB PWM
Controller
iCUE Commander PRO
Coolant
XL5 Performance Coolant (included)
Model Number
CX-9070002-EU

Frequently Asked Questions

The included XC7 RGB water block is compatible with Intel 115X and AMD AM4 sockets. Other sockets may require additional mounting hardware sold separately.
The kit includes a bottle of Corsair XL5 Performance Coolant, so you have everything needed to fill your loop right away.
Yes, the included iCUE Commander PRO controller integrates with Corsair's iCUE software, letting you manage lighting effects, fan curves, and pump speed from a single interface.
Yes, the kit comes with hardline or softline tubing and the necessary fittings to complete a basic loop. Check the specific kit variant for tubing type details.
It's designed as an entry point into custom liquid cooling, with matched components that are tested to work together, reducing the guesswork of sourcing individual parts.

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