Fractal Design Prisma SL Series fans allow your system to truly shine. Six hub-mounted LEDs work in harmony with a white semi-opaque outer ring and fan blades to produce a beautifully uniform glow across the fan’s entire surface. As with any Fractal Design fan, silence remains a central focus with premium LLS bearings as standard the entire series, ensuring Prisma is seen, not heard. Prisma’s striking selection of colors includes red, green, blue and white with a choice of 120mm and 140mm sizes to make any build shine brilliantly.