We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black 120 mm case fan with dual ARGB rings and hybrid frame

Cooler Master

Cooler Master MasterFan MF120 Halo² case fan 120 mm 2050 RPM MFL-B2DN-21NP2-R2

SKU CH-8GFB-RDYA8 MPN MFL-B2DN-21NP2-R2

120 mm case fan with dual-loop ARGB lighting, 2050 RPM maximum speed and 51.88 CFM airflow at 27 dB(A)

  • Fan Counts1 Fan
  • TypeCase Fan
  • CompatibilityCase
  • Fan Size120 x 120 x 25 mm
  • Fan Thickness25mm
  • Bearing TypeRifle

Fan Size 120mm

Model MF120 Halo²

  • Dual-loop ARGB rings boost illumination by 50% for vivid case lighting
  • Enlarged Air Balance blades increase airflow by 10% to 51.88 CFM
  • Hybrid frame keeps full blade size while adding structural rigidity
  • Upgraded driver IC cuts noise to 27 dB(A) at full speed
  • PWM control spans 0–2050 RPM for silent or maximum cooling

Single 120 mm case fan for case.

The Cooler Master MasterFan MF120 Halo² is a 120 mm case fan built for standard case, liquid-cooler or air-cooler mounting. It uses a rifle bearing and a 4-pin PWM connector to vary speed from 0 to 2,050 RPM, delivering 51.88 CFM (88.14 m³/h) at a rated 27 dB(A). The black frame measures 25 mm thick and includes enlarged Air Balance blades for improved flow.

Dual-loop ARGB Gen 2 rings and cable clips

Dual-loop addressable RGB rings increase illumination area by 50% and support ARGB Gen 2 effects when connected to a 3-pin 5 V header; the fan defaults to a spectrum cycle if no header is detected. An upgraded driver IC boosts cooling performance while reducing noise. Clips are supplied to secure both PWM and ARGB cables, and an extended 3-pin plug permits daisy-chaining multiple fans.

Check 120 mm mount spacing and 5 V ARGB header

Verify that your chassis or radiator has 120 mm mounting points with 25 mm clearance for the fan thickness. Confirm your motherboard or controller provides a 5 V 3-pin addressable RGB header if you want full Gen 2 control; otherwise the fan will run its default lighting pattern. Ensure the 4-pin PWM header can supply the required current for speed regulation.

Highlights

  • Dual-loop ARGB rings boost illumination by 50% for vivid case lighting
  • Enlarged Air Balance blades increase airflow by 10% to 51.88 CFM
  • Hybrid frame keeps full blade size while adding structural rigidity
  • Upgraded driver IC cuts noise to 27 dB(A) at full speed
  • PWM control spans 0–2050 RPM for silent or maximum cooling

Specifications

BrandCOOLER MASTER
SeriesMasterFan
ModelMasterFan MF120 Halo²
Part NumberMFL-B2DN-21NP2-R2
Fan Counts1 Fan
TypeCase Fan
CompatibilityCase
Fan Size120 x 120 x 25 mm
Fan Thickness25mm
Bearing TypeRifle
RPM0~2050 ± 5% RPM
Air Flow51.88 CFM (88.14 m³/h)
Noise Level27 dB(A)
Power Connector4 Pin
ColorBlack
LEDAddressable RGB
Shipping weight0.27 kg
Package size178 × 130 × 25 mm

Other versions of this model

3 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.