CRJ Full Speed 12V Voltage Step-Up USB to 3-Pin and 4-Pin PC Fan Sleeved Power Adapter Cable

My son bought this to use with his custom 3d-printed laptop cooler/stand (designed/built/printed himself). He ran two 120mm fans off of it and it worked great. No issues with the USB port or the fans when using the cable.

Had to use to power main cooling fan on PC when the water cooler control board failed.

Ordered a 5v cord first time.. This works great for the higher RPM computer fans-- in ANY type of build. ANYTHING you could need one for.

Ive pugged this into several different charging blocks. Works great, awesome for testing fan motors. I bought it to use in a soldering vent setup, keep using it to test computer fans.

couldnt use did not receive working item

Nice build quality, looks good, does its job so far. I used it to power regular case fans in my network cabinet. Much quieter than the muffing fans now.

I bought this to use with a 12 volt dehumidifying telescope fan. It works as expected and the fan runs at full speed.

Works perfect, no complaints here

I needed a 120mm fan for my Intel NUC. I 3D printed a custom case and all, but needed a way to power the fan. This works perfectly!

Duha , fans appear to be spinning at full speed