Korean PC cooling major Zalman released the CNPS20X and CNPS17X air coolers with RGB LED embellishments. The CNPS or computer noise prevention system line of CPU coolers from Zalman consist of the most outlandish and off-beat heatsink designs, and it's no different with the CNPS20X and CNPS17X. The CNPS17X has a solo fin-stack heatsink with one included fan, while the CNPS20X is a dual fin-stack heatsink with two included fans. Both coolers feature a small quantity of pure copper fins in addition to aluminium fins. The copper fins are positioned toward the center of the stack.

Both coolers include an RGB LED-embellished variant of the ZM-SF140, a 140 mm fan with split-blade impellers designed to increase air-flow. The fans spin between 800 to 1,500 RPM, pushing up to 63 CFM of air, with noise output ranging between 16.5 dBA to 28 dBA. An X-shaped form along the fan-frame holds clear acrylic diffusers for the RGB LEDs. The heights of both coolers are capped at 16 cm, which should make them kosher for most contemporary mid-towers cases. Among the CPU socket types supported are AM4, LGA115x, and LGA2066. The CNPS17X is rated for thermal loads of up to 200 W, while the CNPS20X is claimed by its makers to be fit for 300 W. Available in the EU, the CNPS17X is priced at 60€, while the CNPS20X goes for 80€.