Fan Splitter 4 pin Molex > 3 Qty PWM headers 30cm Long Connect Multiple PWM Fans

It may not look as pretty as some of the other options but it does exactly what it should & also offers a Molex connector for power to the extra fans. This is important because many PWM splitters do not have a Molex connector, instead relying on power from the motherboard fan header which usually doesn't supply enough energy for more than 1 or 2 good fans. Most of the cheaper or lower-end case fans draw around 0.15-0.3 amps, but they usually have low or very low airflow around 25-50 CFM. A regular splitter could handle 3-4 of those while being powered by most motherboard fan headers. I like the Cooler Master JetFlo 120's or Corsair ML120's or ML140's because they flow 95+ CFM without being much louder than some of the 50CFM fans (and have 3-5x the life expectancy because of the bearings they use), but they draw 0.22 amps (ML120) to 0.42 amps (JetFlo) each so many motherboards would only be able to handle 1 or 2 of them (though some motherboards could handle 3 or 4, but not many). Then there are the Delta fans which draw 2-4 amps each but flow 200-250CFM which no motherboard could even power 1 directly. This splitter uses the PWM header from the motherboard to control the fans as a group but the Molex powers them, thereby not risking burning out your motherboard's fan circuits. Be aware, however, it is best if all the fans you attach are the same model or at least have the same operating RPM range.

Was skeptical but it worked great and as advertised

This item is much more economical, and better than a typical fan splitter. This is cheaper then any fan splitter I could find, and it allows separate power from the motherboard.This is perfect for me, as my hard drives and fans are on one power supply, and my motherboard and graphics cards are on another. This allows me to power my case fans from the fan power supply, and still be able to control the speed from my motherboard.The only thing that could be better is if the cables were braided.

PWM really is the smart way to go in my not so humble opinion. Yes the fans might be a tad more expensive but if you're like me you want fans that'll spin down when you just browsing, but then during episodes of intense gaming the fans spin up to protect the cpu from excessive heat. This cable is awesome because it allowed me to split the PWM signal to multiple fans instead of just the one "CPU" or "CHASSIS" signals provided by the motherboard. This splitter has an additional bonus because it redirects the fan's power needs away from the motherboard by using the power supply instead, so now you can put those high CFM fans in there thus supporting those high overclocks!!Another benefit to PWM is that you don't have to buy an expensive and heat producing power hungry fan regulator to vary RPM for those 3 pin fans. While the 3 pin fans are cheaper you'll end up spending that savings and then some on these fan regulators. I guess some will like having 4 dials to control fans, but know that it comes at the expensive of additional heat and power.About the only downside, that I can see, is that these PWM splitters don't come sleeved in multiple colors. I'd pay an extra $15-20 if the connectors and wires sleeved the same color.

I did not connect this to my motherboard but I did connect this cable to my PSU and to my 120mm 4 pin fans, and it works great. This powered all 3 of my 120mm fans with 4 pins per fan no problem. I am to scared to hook this up to my system fan header on my motherboard as I don't trust the flower of power from the PSU thru this cable to my motherboard system fan header, as I don't want to electrically short out my motherboard.

The reason I can't give it 5 stars is because I had to come up with a way to make fit all 4 of my fans. All the plugs on this did not match up with all the plugs on the fans, but for the price I paid I really can't complain.

I thought this looked like a decent option so I purchased.Hooked this up to a system with 3 fans each with a max power draw of 1.1amp at 12volt. This is high for most PC fans, but I figured since this was using a molex connector and had the connections in parallel not series it could take it.The machine powered off and I couldn't get it back on. Fiddled with all sorts of things. Finally I started moving wires and pressing the power button. Finally poof this thing went as shown in the pictures. Somehow that wire was out of its connector and at least one wire totally melted.I can't say I am not at fault, but this thing sure isn't scott free either.

I have purchased at least a dozen PWM fan splitters over the years, and at least half of them did not work as advertised. Some of them I could rewire to work correctly, but others were not worth the hassle and a total waste. This worked perfectly right out of the package, and controlled the radiator fan, VRM fan, and pump from a single PWM signal. I was also happy to discover the pins are secure and align without having to manipulate them into place.