Aiyide 2 Pack USB to 3-Pin / 4-Pin PWM 5V USB Sleeved Fan Power Adapter Cable with Switch, USB to 3 Pin / 4 Pin Case Fan Adapter Connector Cable with ON Off Switch

Well, I was in need of a case fan power adapter. This pretty much did its job. I put together a custom AIO for my new pc build. I had the pump hooked up to the power adapter while adding more coolant to top off and get most of the air out of the system. Worked out great.

Quality control isn't great as one cuts out unless I hold the cord straight. The second one is great.

This thing was a lifesaver when my Xbox One's fan went out and I was waiting on the fan replacement this kept it cool enough to use in the interim just by blowing it over the dead fan that wasn't working I don't recommend that little hillbilly hack but this thing saved my bacon for a few days! Now I'm using it to blow the hot air out the back of my Entertainment System while we're using the devices and it's working perfectly!

I like this nice switch, I used it for a fan switch and it worked perfectly. It's small enough that you can place it in line and not have 50 feet of cord have to worry about. Often times you will find when you have a switch you also have a lot of cord. This is just about the right lane to use on a project. I found that even the smallest backup battery was able to power through this switch. So there is no issues even on low-voltage .There's not much to say about a switch either works or it doesn't, but the quality is decent and I highly recommend this for a simple switch on a USB line.Please keep in mind I did not use this for any kind of data switching. I only use it for voltage of a fan. Other applications may have serious repercussions depending on how the switch is made. I would consult the manufacturer of the switch before I use it for any other purpose other than to switch off the voltage.

Works for my 120mm Nactua 12v 2000rpm fan, but at a lower speed ( since 12v versus 5v supplied ). Which is fine for my needs. Although, only one switch came in bag while listings says 2 pack..