Cooler Master MasterFan MF140 Halo² 140mm 1600 RPM Case Fan MFL-B4DN-16NP2-R2

140 mm case fan with dual-loop ARGB

The Cooler Master MasterFan MF140 Halo² is a 140 mm case fan built for PC cases, liquid coolers and air coolers. It uses a rifle bearing and a 4-pin PWM connector to deliver dynamic speed control from 0 to 1,600 RPM. Addressable RGB Gen 2 lighting runs on dual loops with an auto-detection feature that provides a default spectrum or full customisation via a 3-pin ARGB header. The fan moves 59.51 CFM of air at a noise level of 27 dB(A).

Upgrade from single-loop or non-ARGB 140 mm fans

This model replaces 140 mm fans that lack ARGB Gen 2 lighting or that use a simpler single-loop design. The jump is worth it when you want the 50 % larger LED rings and the 10 % larger Air Balance blades that raise airflow to 101 m³/h. The hybrid frame keeps the blade area intact while adding structural rigidity, and the upgraded driver IC pushes cooling performance higher without increasing the 27 dB(A) acoustic ceiling. Secure cable clips and a daisy-chain ARGB extender simplify installation in multi-fan arrays.

Check 140 mm mounting points and 4-pin PWM header

Verify that your case, radiator or heatsink has 140 mm mounting holes with 25 mm clearance for the fan thickness. Confirm the motherboard or fan controller provides a 4-pin PWM header for speed control and a 3-pin 5 V ARGB header if you want software-controlled lighting. The included ARGB extender allows daisy-chaining, so plan cable routing for the extra connectors. No other specific interface or power requirement is listed.