SXDOOL DF1203812B2FN 120mm 38mm 4.50A 6000-6499 RPM 4 Pin case fan

High-Speed 120 mm Case Fan

The SXDOOL DF1203812B2FN is a 120 mm by 38 mm case fan built for high-static-pressure airflow. It spins between 6000 and 6499 RPM using a dual-ball bearing and draws 4.50 A from a standard 4-pin PWM header. The black, non-LED frame suits industrial or mining rigs that need maximum air movement through dense heatsinks or restricted chassis.

Suited For High-Resistance Cooling

This fan targets builders who must push air through thick radiators, tightly stacked drives or custom mining enclosures. The high current draw and speed range make it effective where standard 120 mm fans stall. Buyers who need quiet operation, low power consumption or RGB lighting should look elsewhere, as the dual-ball bearing and 4.50 A rating prioritise raw airflow over acoustics or aesthetics.

4.50 A Current Draw Decides Fit

The single specification that determines compatibility is the 4.50 A rating on the 4-pin connector. Most consumer motherboard headers are rated for 1 A to 2 A, so this fan will trip protection or damage the header if plugged directly into a typical board. It requires a dedicated high-current fan controller, a powered hub or a server-class header rated for at least 5 A continuous output.