CRJ Mini 2-Pin Fan Adapter Cables (2-Pack) - 4-inch (10cm), Black Sleeved - Connect 3-Pin & 4-Pin PC Fans to Mini 2-Pin JST XH 2.5mm Headers

I bought this to install a Noctua NF-A12x25 (4 Pin) to my GE Opal 2.0 (2 Pin). It worked great, no modifications needed. It was worth buying this instead of dealing with the hassle of splicing. It is also a good length, combined with the fan cord to connect it to. This should work with most circuit boards to install pc fans. Overall its a great buy and looks like its a good cord.

I can remember quieting down my CPU in the late 90s and it took me a while to find the product, which was a Zalman Fanmate. They weren't made anymore, but I found a bunch used in a lot on eBay. My ASIC miners along with the separate power supply were just too damn loud. They, however, make really great efficient space heaters. If using a proper space heater, they produce about the same heat per watt used, except at full blast, they are too loud for most unless someone enjoys the sound equivalent to a running handheld pistol styled hairdryer. I had found most of the noise to be coming from the cooling fan on the ASIC miner itself. Firmware was able to take care of the fan noise, but also mine at a reduced rate - which is fine for me as full blast, it was too hot for the room. After successfully slowing down the ASIC fans with firmware, I discovered that the PS also makes a somewhat obtrusive noise. It is the Bitman AW3++ PS in particular as the HP 750W Server PS I also had was quieter. After investigating, I found it was a 2-pin connection and this jogged my search for Zalman Fanmates, this item, and also its opposite. I had found that both the "CRJ Mini 2-Pin Male Fan to Standard 3-Pin PC Fan Adapter Cable" and the " CRJ Mini 2-Pin Female PC Fan Adapter Cable 2-Pack" along with the Zalman Fanmate in the middle was enough to slow the fan down to an unobtrusive noise-level. It's not quiet by any means, but now it sounds like I have a space heater running and it keeps my feet toasty since I have these setup below my desk. I'm spending about the same power as if I were running a proper space heater, I get about the same heat and noise-level as a proper space heater, but I get to mine 50 cents of crypto a day. LOL. Still mining at a loss, but would have set up a space-heater anyways. This review is also going verbatim under the other cable. It works for what I wanted it to do - which is insert a 2-pin Zalman Fanmate between the 2-pin built-in fan and the jumper on the circuit board. It fits without electrical or physical modification. I need two Fanmates in there if I want to completely stop the fan, but that's not directly relevant to this product.

Worked great. I had to replace a noisy fan in a brand new astro-camera. This adapter allowed me to avoid cutting and soldering - something I would not have relished on a $1500 camera!

Perfect and high quality. I had to replace power supply fan, I needed this cable. Good job!

They are wired backwards at first I thought it was a dude, but I looked at the original wire, vs the adapter and the ground wire was swapped. A fine needle to poke the connectors out and swap then it worked.

Bought this to replace a PSU fan with a Noctua (do not do this, pay someone to do it please). Worked perfectly

Works great to replace stock network switch fan with noctua fan

Replaced stock fan from my APW3++ PSU and this was a perfect fit! Great quality.

Great product and the quality was good. The price was just right. would purchase from the seller again

Was very overpriced when I bought it. Didn't check if it still is.