Corsair iCue H115i RGB Pro XT

$225

A high-quality AIO cooler is effectively a must-have for any Threadripper system. While air cooling is always an option, these chips are powerful and run hot, so liquid cooling is definitely the way to go. The H115i RGB Pro XT isn’t cheap, but it offers best-in-class CPU cooling thanks to its 280mm radiator with dual maglev fans. The RGB lighting on the pump block isn’t something we sought out, but Corsair’s iCue software also allows for greater fan customisation, including a nifty zero-RPM mode that shuts off the fans entirely when processor temperatures are low enough. Full sTR4 compatibility with a toolless swappable bracket is the last box we needed to tick.