🔧 GeeekPi 2pcs Raspberry Pi 4 Quiet Fan, RGB Cooling Fan 40x40x10mm 4010 Fan DC 5V Brushless CPU Cooler Radiator for Raspberry Pi 4 Model B, Raspberry Pi 3B+/3B/2B (Multicolour) Review

The fans on my replacement 6 x 2.5" 5.25" Icy Dock became noisy and then one of them died. They had wiring that suited my needs (2 wires with separate connectors). They move enough air to make a difference. I didn't care about the LEDs since they're on the server, but they were the cheapest fans at the time of purchase. They beautify the inside of my server. I can't say much about the volume as other fans in other parts of the server rack are louder.

Purchased to replace the fan that came with the C4Labs Zebra 4 internal fan case for Raspberry Pi 4B. The original fan started making noise a few weeks after purchase and was driving me crazy. This new fan is smooth and quiet. peace again! Fit, finish and quality appear to be good.

I bought this fan to fit in a Raspberry Pi 4 case for an Octoprint server. It is powered by a raspberry pi using the GPIO pins on my raspberry pi 4. Installation is easy, see attached picture the black one with one of the ground pins (6, 14, 20, 30 or 34). This fan cools the case well, but it's noisy, which is annoying when I'm working 24 hours a day.

The original 30mm fan that comes with the Vilros kit is too loud when connected to the "full power" pin. I cut a hole for the fan with a dremel and placed it on the case - it might "just" fit in, but I didn't bother. It's not quiet, but it's quiet enough to put on your desktop and work. When connected to the "Silent" pin, it is almost inaudible; The original was pretty quiet in this mode too, but of course this one should push out more air while it's taller.