Noctua NF-A4x10 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (40x10mm, Brown)

Noctua Fans are always perfect; all the parts are there for install and built quality is no.1

Good

Great for Dreamcasts =)

Just got the fan was on backorder for two weeks and so far very happy with it; I needed a 5V fan powered off USB, and this has both. Quiet as any other Noctua fan while performing very well. Use it to cool my Vive Wireless VR adapter that overheats after 30 minutes of use normally. The cable quality is excellent got a rubber sheath and heat shrink molding, though this is also a complaint as outlined below. Will likely buy one or two more soon to replace the aging (and loud) fans for networking appliances.Saw some reviews comment on excessive packaging, well this package is much more environmentally conscious, no huge plastic holders to all the different parts, just a cardstock box and fan holder.Not really negatives but if Noctua is looking for feedback, been replacing new computer builds with the Chromax black version, so hopefully Noctua can make these in black one day. I don't really need my fans to stand out; they just need to their job. My only real gripe is the cable is fixed length; since it's a small fan it's likely use in limited space environments that don't need such a long rubber sheathed cable. All my newer Noctua 12V computer fans come with a short connect on the fan and then few extension choices, this one is a fixed 30 cm cable.

I love Noctua fans! They are super quiet and push a lot of air. They’re definitely worth the price. I bought this one for my RetroPie setup with Raspberry Pi3B and it works perfectly. Since I got a pwm version of the fan I wrote a python code that can control rpms depending on CPU temperature. Now my Raspberry Pi stays super cool when I play retro games! I have several Noctua fans in my different setups and I must tell you they’re worth every penny and it’s been several years and they’re going strong.

This Noctua fan moves a lot of air, and is quiet for its size while doing so. The included USB power cable is extremely useful and can be plugged into a USB fan governor for manual fan speed control.After being unimpressed with laptop cooling solutions, using these fans with a cheap plastic laptop stand gave my gaming laptop better airflow than any of the all-in-one solutions ever could.

it served the purpose I bought it for.

I used this to replace the control board fan in a Bambu X1C 3D printer - the stock fan is of poor quality and becomes noisy, with many users experiencing this. (I do expect Bambu to change suppliers.) This fan fits where the stock fan does, but requires that you splice the original connector to the Noctua cable. This is where it gets annoying.The so-called "OmniJoin" is just a set of four pushbutton splice connectors. You have to cut off the Noctua connector and splice the individual wires to those from the original connector. The leads must be stripped, and you have only one chance to use the splice button to connect them. I gave up and soldered the leads.Noctua fans don't move a lot of air, but they are quiet. For this application, the fan was fine.