SUIUBUY Su-LL120-B 120 mm ARGB case fan

120 mm ARGB PWM case fan

The SUIUBUY Su-LL120-B is a 120 mm case fan with addressable RGB lighting and a PWM motor. It moves up to 58.54 CFM of air at a maximum static pressure of 2.54 mm H₂O. Speed ranges from 800 to 1900 RPM while noise stays between 17 and 31 dBA. A fluid dynamic bearing supports long-term operation.

Requires separate ARGB controller

This fan suits builders who already own a compatible 5 V ARGB controller and want to add a single black unit to an existing daisy-chain. It is not for buyers who need a controller included in the box or who prefer a plug-and-play kit with hub and remote. The 3.5 W motor draws 0.18 A at 12 V; the LEDs draw 0.6 A at 5 V.

5 V ARGB 3-pin + 12 V PWM 4-pin

The decisive specification is the dual-cable design: a 3-pin 5 V ARGB connector for lighting and a 4-pin PWM connector for speed control. Both must connect to matching motherboard headers or a dedicated controller. Without a 5 V ARGB header the lighting cannot be addressed, and without a 4-pin PWM header speed regulation is not possible.