Open grille and 180 mm front fan optimized for maximum air intake Fractal Design 180 x 38 mm fan leverages power, size, and thickness for massive air-moving capacity Space optimized, yet still capable of handling up to 3-slot thick 335 mm long GPUs The Torrent Nano is built to maximize cooling potential straight out of the box. Main standouts include an unobstructed base intake, an open front grille and one of our 180 x 38 mm Dynamic PWM fans (Prisma for RGB version) custom-made to achieve maximum air cooling while maintaining controlled noise levels.Top-tier airflow- The included Fractal Design 180 x 38 mm fan leverages power, size, and thickness for massive air-moving capacity- Front fan brackets allow for unblocked airflow to the larger fan while catering to standard radiator sizes- Dust filters for front and bottom easily accessible by removing the frontStreamlined inside and outOpen interior and a top mounted PSU provides plenty of breathing room for componentsQuick start, clean f