Jonsbo ZA-420BR PWM Fan, Reverse, ARGB - 3x 140mm, black

The Jonsbo ZA‑420BR combines three black 140mm reverse-blade fans in a single unified frame. Ideal for showcases and systems with glass fronts or inverted airflow – stylish, powerful, and pleasantly quiet.

• 3x 140mm reverse-blade fans in a sturdy unified frame – perfect for 420mm radiators
• ARGB for customised RGB synchronisation with motherboards & controllers
• PWM control with automatic speed adjustment (700–1,500 RPM)
• Delivers 59 to 110m³/h airflow per fan at a maximum of 30.6 dB(A)
• Hydraulic bearings for reliable continuous operation with low noise

ARGB lighting effects on the visible side

Thanks to the reverse-blade design, the fans display their illuminated side facing the case interior – perfect for glass panels or stylish builds. The fan blades are specially shaped to direct airflow outwards despite the reversed appearance.

Quiet airflow with RGB control

With up to 110m³/h airflow at just 30.6 dB(A) per fan, the system remains pleasantly quiet even under load. The speed automatically adjusts to cooling needs – providing a balanced performance-to-noise ratio.

Durable & easy to install

The continuous triple frame simplifies mounting on 420mm radiators or mesh surfaces. The durable hydraulic bearing enables quiet continuous operation with an average lifespan of over 20,000 hours.