JONSBO ZB-120BR (Reversed) 120 mm ARGB Case Fan 2400 RPM

Reversed Blade 120 mm ARGB Fan

The JONSBO ZB-120BR is a 120 mm case fan with reversed blades designed for builders who want intake airflow directed away from the motor hub. Its 28 mm thick frame houses an infinity mirror lighting array on four sides, creating a layered visual effect suited to showcase builds. The unit targets users who value coordinated ARGB illumination alongside functional cooling. It is not for buyers who need standard blade orientation for conventional exhaust layouts.

700–2400 RPM PWM Range With 36.6 dB(A) Peak

Speed varies between 700 and 2400 rpm via 4-pin PWM control, delivering 20.95 to 65.26 CFM of airflow and 0.45 to 3.20 mmH2O of static pressure. Acoustic output spans 20.3 to 36.6 dB(A) across the curve, keeping noise low at idle while providing headroom for heavier loads. The integrated male and female headers allow daisy-chaining multiple fans on a single motherboard connector. It is not for systems that require silence below 20 dB(A) at any speed.

28 mm Frame With Dual ARGB And PWM Headers

The black 4.72 by 4.72 by 1.1 inch frame uses a joint structure that simplifies mounting in standard 120 mm locations. A 3-pin ARGB lead and a 4-pin PWM lead each provide male and female ends, enabling series connections for both power and lighting without extra splitters. Reversed blades mean the fan pulls air toward the motor side, so orientation must be planned during installation. It is not for cases with clearance under 28 mm or builders who prefer traditional blade direction.