AABCOOLING Super Silent 4cm 40mm Fan | 12V PC & 3D Printer Cooling | 4500RPM, 8.26m³/h, 17.9dB(A) | Compatible with Desktop & Other Electronic Devices

These are great little fans. Very quiet. I bought them to replace the extremely noisy fans in a Netgear Ethernet switch. Same airflow at a fraction of the noise. Very pleased.

I bought it to quieten a low profile industrial pc's power supply. Damn thing is good

I'd have given a 5 star as they are great and do the job at keepign things cool quietly. Although I'd have liked the overall height of these a little lower, then when using in a pc on items in the card slots they would allow for more room. I need to use these on a few more items but the fans are that little bit too high, which is a shame but apart form that they are quiet and what I've cool with them gets very hot and they cool it.

These fans were very silent first 2 weeks but they start to make grinding sound more like stone crusher. the bearing completely broken down. the fan vidrate like crazy.

The so called 'anti-vibration pads' are actually just (4) plastic washers. In their defence, they are reasonaby thick and 'squishy', but certainy not the 'inserts' I exected from the photo in the item description (which is just the 4 washers carefully balanced on top of the mounting holes :-) ) I've yet to discover how 'silent' the fan is = I'll add to this in due course ..

This fan worked really well and very quietly for a couple of months (June until August 2022). Then, it started rattling unpredictably from time to time. Tap the case in which is mounted and it stops rattling, but will start up again after a day or two. #disappointed

Fan is silent but so is not having a fan at all. Both have the same result, Nae cooling. Returned

This may be a case of getting what you pay for. The fan is described as being quiet but its not really.

Questa ventola è pazzesca: comprata per sostituire l'originale della mia stampante 3D Anycubic iMega 3S. Il filo giallo non serve per l'alimentazione che sono il rosso e il nero. E' talmente silenziosa che non si capisce se gira o meno. Superconsigliata.

Used this fan to replace an old fan in a network switch. After just 2 months it started producing more noise than the old fan ever did. Lifetime of 100.000 hrs was more 1500 hrs..

I bought this one to use with my Prusa 3D printer, and the only option I have is to run at full speed, then this fan is very noisy.

Ürün güzel paketlenmiş, hoş bir kutuda geldi. Montajını yaptıktan sonra yarı güçte çalıştırmama rağmen hava akışı oldukça tatmin ediciydi. Beni ürüne yönelten performansı ve sessizlik vaadiydi fakat performans çok iyi olsa da ürün sessiz değil. Normalde fanlarda kanatların dönüş sesini duyarsınız, bu ürün güzel dizayn edilmiş ve bu 'uğultu' diye adlandırabileceğimiz ses gelmiyor evet, fakat ürünün orta kısmı yani bearing'in olduğu, dönüş'ün sağlandığı kısımda elektrik veya coil whine olarak adlandırabileceğimiz bir ses var. Bu %25 güçte başlıyor, %50'de rahatlıkla duyulabilecek düzeye geliyor. Eğer bu fanı sessizliği için alacaksanız kesinlikle önermiyorum. Performans olarak fiyatına göre iyi iş yapıyor fakat aynı odada çalışmayı veya uyumayı düşünüyorsanız kesinlikle Noctua veya başka muadil marka bakın. Sağlıklı günler.

Es extremadamente silencioso y eficaz, en mi caso lo he utilizado para reemplazar el ventilador trasero de una emisora ICOM 208H y el resultado ha sido espectacular. El envío muy rápido y la calidad del artículo inmejorable.