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Black 120mm square case fan 38mm thick with 4-pin PWM connector

1ST PC CORP.

1ST PC CORP. AFC1212DE-PWM 120mm 38mm 3900 RPM case fan

SKU CH-K4H3-J0CY0 MPN AFC1212DE-PWM

A 120 mm case fan with 38 mm thickness, 3900 RPM speed, 148.34 CFM airflow and 51 dBA noise level

  • Number of fans1 Fan
  • Fan depth38 mm
  • Rotational speed3,900 RPM
  • Airflow rate148.34 CFM
  • Operating noise51 dBA
  • Power input connector4-pin PWM
  • Moves 148.34 CFM for rapid heat removal
  • Spins at 3900 RPM to sustain airflow under load
  • PWM control matches speed to thermal demand
  • TAC sensor provides real-time speed feedback
  • 38 mm thick frame fits high-static-pressure mounts

High-speed 120mm case fan

The Delta AFC1212DE-PWM is a single 120 x 120 x 38mm case fan built for systems that demand maximum airflow. It spins at 3900 RPM and moves 148.34 CFM through a standard 4-pin PWM header. A TAC sensor provides real-time speed feedback for precise control.

Builders who need extreme cooling headroom

This fan suits servers, workstations or overclocked rigs where thermal margin outweighs acoustic comfort. At 51 dBA the noise level is prominent, so it is not a fit for quiet living-room PCs, noise-sensitive studios or any build that prioritises low decibel levels over raw airflow.

38mm frame thickness

The 38mm depth is the critical specification; verify that your chassis or heatsink mounting points accommodate this profile before purchase. Standard thinner brackets will not accept the frame, making the dimension the single factor that decides whether the part can be installed.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $20.99
Typical for this category: the median of 8,339 items is $19.99.

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Specifications

Product
Brand nameDelta
Model nameAFC1212DE-PWM
Product typeCase Fan
Product colorBlack
Performance
Rotational speed3,900 RPM
Airflow rate148.34 CFM
Power
Power input connector4-pin PWM
Size & build
Number of fans1 Fan
Fan depth38 mm
Product dimensions120 × 120 × 38 mm
Shipping weight0.32 kg
Package size216 × 160 × 46 mm
Compatibility
Compatible withCase
Environment & compliance
Operating noise51 dBA

Questions about this item

What does the box contain for the AFC1212DE-PWM, and do I need to purchase mounting screws separately?

The package includes one 120 x 120 x 38mm fan with a 4-pin PWM connector and TAC sensor. Mounting screws are not included and must be sourced separately.

How do I decide between different versions or capacities of this Delta 120mm case fan?

This model is offered as a single configuration: 3900 RPM, 148.34 CFM airflow, and 51 dBA noise at 38mm thickness. No alternative speed or capacity variants are available for this MPN.

What does the 3900 RPM headline figure deliver once the fan is installed in a case?

At full speed it moves 148.34 CFM of air through a standard 120mm mount while producing 51 dBA. The 4-pin PWM control and TAC sensor allow the motherboard to lower speed and noise when full flow is not needed.

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