There are two categories of ARCTIC case fans: P-fans and F-fans. While F-fans are used where airflow is required, P-fans work in such a way that they generate high static pressure. This makes P-fans particularly suitable for use on heat sinks, radiators or dust filters. The BioniX fan is a gaming fan available in both series and different sizes. Its extended speed range and special optics make it the ideal fan for gamers. The product name shows whether a fan has PWM. A "PST" in the product name identifies our popular PWM sharing technology, in which the PWM signal of a fan is shared with other fans. A "CO", on the other hand, indicates that the fan is optimised for continuous operation. Thanks to a double ball bearing, this has a longer service life and can be operated for years without interruptions.