NF-A4x10 PWM

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.

Ordered a few 40x10mm PMW controlled fans to mess around with a few of our Xbox’s. With the proper splitter plugged into series s mobo to utilize stock fan and noctua fan everything works great! No usb wires all over the place which I love. Have purchases other noctua fans and heatsyncs for my PC but every time is just as good as the first! This 40x10mm pmw fan came with high quality 4 pin splitter cable, low noise adapter cable, 4pin extension cable, omnijoin adapter plug and 3m terminal connectors then mounting screws and rubber mounting darts. Spent the extra money and get you some noctua products you will not be disappointed!

Cools an SAS HBA card pretty well. I did have to use zip ties in order to attach it. But that is not really a surprise.

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.

Needed to replace a very noisy motherboard fan on my old Asus Sabertooth Z170 Mark 1. As one reviewer mentioned, I did have to take the corner rubbers off the top of the fan in order for it to mount properly. Could not find an adapter cable to use with this fan to plug it into ASST_FAN1 small white male plug so I plugged it into ASST_FAN3 Works Great, very quiet... Noctua Rocks!!!

I bought this to cool an LSI 9207-8i HBA (https://www.amazon.com/dp/B0085FT2JC), and it seems to be doing fine. This fan moves (at top speed) just under 5 CFM at just under 20 dB, which seems pretty typical. PWM means it can be connected to a PWM fan header to control its speed for even less noise, although even at full throttle, it's hardly audible a few feet away. It also comes with a boatload of accessories, including a PWM-capable Y adapter that allows connecting 2 fans (more, if you chain adapters) to a single header. Overall, I think it's a good choice for a quiet 40mm fan. (I'd imagine the Noctua A4x20 is also solid, however it appears to trade slightly higher airflow and double the height for a wider "dead zone" in the middle, which for my use — the fan is mounted directly on a heat sink — wasn't ideal.)

Used this on my LSI SAS Card since I installed it in an ATX Tower case which doesn't have high airflow like server cases would. It keeps my LSI SAS Controller nice and cool without creating any noticeable noise.

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.

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.

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