Delinx 36W 12V PC Fan Power Supply,4 Cooling Fan Speed Controller,100-240vAC to 3-12vDC Adjustable 3A Power Adapter,with Fan Splitter Cable,DC Female to 4 x 3/4 Pin, Multi-Functional

Used this for my small home 10G data/security rack due to UI blades running pretty warm. Worked great with some Antec PWM fans (also ordered off Amazon) to keep the noise levels down and be able to adjust fan speeds to match ambient noise levels.

using these under a fish tank stand for exhaust, using these in the media rack for air flow, all noctua fans, all run perfect. set and forget for my setup.

Works as intended. Using to power 4 fans I put into a self made ventilation system for a laser engraver enclosure.

the voltage adjustment knob (potentiometer) is very precise and is not sloppy. there is an initial "click" spot at the start of the rotation to turn the unit on. i tested the output with a volt meter and it does what it claims. great product

I have this controlling some extra fans mounted in my sever rack. They have been running nonstop over a year and this controller is still going without an issue. A simple solution for running fans wherever you need them.

This thing works very well as intended. But anything under 50% speed this thing buzzes so loud. Wish the company would address mine and some others reviews about the same thing.

Using this for a meat drying box. The fan on top sucks air that comes in from the bottom sides of the box. Easy to control the speed so that I start slow for the first day of drying and don’t develop too hard of a surface before the inside is dry.Highly recommend for any project where you need to control fan speed.

The media could not be loaded. Power cycled immediately