40mm 12V HighSpeed PWM Cooling Fan Replacement for Delta FFB0412UHN, 4028 4CM 0.75A 14000RPM Powerful Axial Fan for PC Server Industrial Device Heat Dissipation

This aftermarket 4028 40mm axial PWM cooling fan is designed as a dropin compatible replacement for Delta FFB0412UHN, rated DC 12V, 0.75A with peak rotational speed up to 14000RPM to provide powerful forcedair cooling for spaceconstrained highpower hardware. The 4pin PWM connector allows realtime speed regulation by motherboard or fan controller, spinning faster under heavy thermal load and slowing down during lightusage periods. Robust bearing assembly is engineered for roundtheclock continuous operation, wellsuited for rackmount servers, compact PC builds, network switches and other industrial heatdissipation applications. Standard mounting hole spacing aligns perfectly with original fan position for simple installation without extra modification. Please note highspeed 14000RPM operation generates obvious fan noise, which is normal for this performance grade. Doublecheck your original fans voltage, current and pin definition before ordering. This is not original Delta brand unit, only for replacement use.