NF-A4x10 PWM, High-Performance Quiet Fan 40mm

Beautiful piece of engineering. And the packaging... Wow. Speechless. They've included everything you might need. The airflow is weak though, but what would you expect from the fan of this size. Oh yeah! And it's super quiet.

Used to replace original Asus ROG Strix Z390-E chip set fan. Fan is almost silent and moves plenty of air. My opinion, Noctua fans are the best. All case fans have been replaced with Noctua's fans and no complaints.

Perfectly fit my custom HBA fan mount for my home server. Great fit, great cooling and low noise.

After getting 1 of these fans there the only ones I'll buy anymore, good price, high quality, and super quit. I like how it comes with all the wiring hardware for the different setups

Yep. Noctua wins again! For those not familiar with fans and their intricacies, smaller fans often tend to be louder than larger fans. Tiny tiny fans like those 40mm and under can be painfully annoying as the RPMs reach breakneck speed. Noctua managed to keep the hub size so tiny, that there is actually room for air to move through the fins, instead of squeezing through the gap between the hub and the shell. This prevents that painful “whizzing” noise heard on most small fans. The engineering behind doing that is tricker than it seems, but Noctua doesn’t disappoint. It is DEAD quiet and moves decent air for the little fella. Great addition for hobby projects and PC mods. And as always, Noctua includes every adapter and amenity under the sun. The convenience included is alone worth the price. Spend the bit extra couple dollars, your ears and components will thank you.

Needed a solution for a RAID Controller (PERC H730) that was continually running at 52c in a Fractal Design Node 304 case. Designed and 3D Printed a bracket for it, installed on the same port as the rear fan so it's cranked up pretty good. It's almost silent, and took my temps down to 38c continuous. Absolutely worth the cost.

Excellent quality. Nice and quiet. Reduced noise from my old fan.

First one was defective. Was making a bearing noise. Replacement worked well.

My PC's CPU temperature was low (35 – 52 degrees). However, the Z690 chipset was hovering around 80 – 90 degrees. Way too hot for my comfort. Made a simple mod by zip tying a 4cm Noctua fan to blow directly at the chipset heatsink. The temperature drops to between 61 and 69 degrees. ASUS made a mistake of removing the heatsink fan for aesthetic reason.

Pour parfaire le refroidissement de mon PCH, ce ventilo est petit mais costaud !!! Avec ses 5000 RPM il envoi du lourd et dans le plus grand silence. Son prédécesseur atteignant seulement les 3000 RPM hurlait dans le boitier et se faisait entendre malgré le bruit des autres ventilateurs alors qu'il n'est pas bruyant par l'usure tout au contraire il est relativement neuf. Avec le Noctua je suis obligé d'ouvrir le Harware Monitor pour vérifier qu'il tourne lors des grosse charge en température. 4800 RPM et je ne l'entend pas !!! quel merveille !

incredibly quiet even at full speed. been running this in my pc case for months now and honestly forgot it was there until i looked at the temps. cooling is solid, nothing fancy but it moves air efficiently. the pwm connector works flawlessly with my motherboard and the fan ramps up and down smoothly as needed. build quality is excellent, feels premium compared to generic fans. only real downside is the premium price tag but if you want to swap fans and keep your system quiet this is the right choice. no vibration even when ramping up.

Excelente producto al inicio pensaba que era demasiado caro para un ventilador tan pequeña, pero de verdad que sí fama lo precede. Lo instale en una impresora 3d y me va de maravilla comparado con el que traía este es mucho muy silencioso, la verdad estoy muy satisfecho con la calidad de este producto

Its Noctua need I say more. It will replace my Tronxy CoreXY printers system fan, have also replaced the hotend cooling fan with noctua as well.