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

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

I greatly underestimated how fast or loud powering a 120mm case fan with this would be. The cable itself isn’t anything special and feels sturdy enough. Most importantly it does what it is supposed to do. So if you need high rpm, high noise, 24/7 fan operation you cant go wrong.

Works as designed (regulates all input voltages to 12V). however did not meet my need as i hoped it would be proportional to input voltage. My mistake not mfrg.

I use it to test various 12v pc fans. Also used it to prime a pump on a liquid cooling computer and bleed the air out of the system.

This works exactly as it’s described. I added a small cooling fan into the back of my entertainment center to cool my Xbox One X because it was in a rather enclosed space. The USB the three pin adapter allowed my to plug the fan into the back of my tv so now the fan only runs when my tv is on and the Xbox stays cool when I’m gaming. The construction of the cable is a little flimsy and would definitely not be hard to break. The heat shrink has already started to move around on the cable and I only touched it to install it. This would have been a five start review if not for the mediocre construction.

Using with 12v fan to silent a very noisy network switch. Works great and has been working great for over a month now, no issues and good build quality.

couldnt use did not receive working item

Im using this to add a little more airflow for the PS4 Pro exhaust. With a 120mm fan, the noise is quieter and less distracting than the PS4 alone when the fans would spin up high.

Basically I purchased a little desk on Amazon so I could use my gaming laptop on the couch. The little desk had a cheap fan. I upgraded to a Noctua Fan and needed a way to power that fan by USB. Everything worked flawlessly. Ive only had it a short while so Ill update this review if it dies prematurely since I will be using it practically every day. I was surprised this product even existed but Im glad it does!

Am using this to power a Noctua 120mm case fan to provide active cooling for my ASUS AC2900 Router. Works flawlessly. Couldnt be happier and am picking up another to have in my equipment arsenal.