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

This 40mm 4028 highspeed axial PWM cooling fan serves as a compatible replacement for Delta FFB0412UHN fan, running at DC 12V, 0.75A with maximum rotational speed reaching 14000RPM to generate forceful airflow for intensive heat dissipation. Adopting standard 4pin PWM interface, it supports automatic speed adjustment synced with motherboard or controller temperature signal, balancing cooling performance and noise output under different load conditions. Builttosustain bearing construction enables longterm nonstop operation, perfectly fit for compact server chassis, network hardware, industrial devices and smallformfactor PC cooling projects. Standard mounting hole spacing matches original 4028 fan installation position for straightforward swapandinstall. Please verify voltage, current, RPM and PWM pin definition of your original fan before purchase. This is an aftermarket compatible replacement fan, not original Delta product. Intended for highheatload scenarios; high RPM will produce noticeable operating noise.