GDSTIME DC 24V 40x40x10 Axial Fan GDA4010 7 Blades Dual Ball Bearing 7500RPM .9W .04A XH2.54 4010

I've picked these up from here, amazon, and aliexpress so far. Both the others failed in the exact same use case within weeks of being installed, but this one has been chugging away without issue since it went in. The difference to buying here versus other places is you know what you're getting and they stand behind it as well.
Overall pretty impressed with the fans and the service at West

I replaced my Formbot hotend fan with this the quality difference is very obvious! I'd recommend to anyone trying to upgrade their SB cooling

After replacing my electronics fans with Noctuas, I really started to notice how loud the cheap fan was that I originally used in my Stealthburner. I really am a believer in name brand fans now.