With the alternative acrylic top cover fitted there is a larger clear window for the RGB to illuminate, so users who like the RGB overload will probably use this top cover.

We had no reason to measure the power efficiency as its not a deal-breaker for an AIO cooler, so we take Corsair’s words for this.

including LGA 1700, 1200, 115X, and 2066, plus AMD Socket AM5 and AM4, the H115i ELITE CAPELLIX XT puts CPU cooling in a whole new light. Since the coolers base plate comes with a pre-applied thermal compound coating, there is no need to apply additional thermal compound to the CPU heat spreader. If I had to pick on something it would be the conservative fan profile in the “balanced” mode, which would offer better performance with a slight tweak to the max RPM.

CORSAIR iCUE Commander CORE Included: A smart RGB lighting and fan speed controller gives you precise speed and lighting control over up to six RGB fans. The ELITE CAPELLIX XT cooler pump head houses 33 ultra-bright CAPELLIX LEDs to go along with its RGB fans. Connect to the included CORSAIR iCUE Commander CORE and powerful CORSAIR iCUE software to orchestrate synchronized RGB lighting, adjust fan speeds, and enable Zero RPM mode on up to six fans. CORSAIR AirGuide technology utilises anti-vortex vanes to direct airflow for concentrated cooling, while eight RGB LEDs per fan illuminate your system in brilliant lighting effects. Even though Corsair states that the ML140 RGB fans included with the H115i Elite Capellix should run up to 2000 RPM, no matter how we configured the fans, we could only reach around 1800 RPM which produced noticeably lower noise levels compared with previous Corsair AIOs equipped with these fans.Light up your system with 33 ultra-bright CAPELLIX LEDs in the pump head and 16 fan RGB LEDs, for mesmerising, customisable lighting effects. The H115i ELITE CAPELLIX doesn’t just have standout looks from its ARGB fans and new CAPELLIX LED-infused pump, as the cooling performance using the “extreme” preset was fantastic.