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

Does what its advertised to do, tested on PS3. Was purchased to power up a 140mm PWM fan that is going to move air towards exposed SSD heatsink on PS5. Fan started without any issues when used PS3 USB ports, so far so good. No build quality issues observed on delivery. Will later test if it works with laptop ports. Also performed well in combo with a fan speed controller attached in chain towards the fan. Product recommended.

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!

Works perfect, no complaints here

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.

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.

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.

Duha , fans appear to be spinning at full speed

Tested out a few fans and a pump with this cable.

Purchased CRJ Full Speed 12V Voltage Step-Up USB to 3-Pin and 4-Pin PC Fan Sleeved Power Adapter Cable for testing and powering 12V fans. Adapter is made of high-quality materials and is easy to use. Works perfectly for testing 12V, 2 to 4 pin fans. Highly recommended!!!

This was exactly what i needed to repurpose an old tower desktop fan. The fan was still great, it just needed that bridge from 3-pin to USB. That being said, as everyone mentioned, this is just a two pin setup. But the fans ran as soon as I hooked them up and plugged them in to a USB outlet or a plugin adapter. This will run the fans at full speed and you will get a fair amount of breeze. Perfect for how i wanted to use this to cool additional electronics.