Review on 4-Pin PWM Fan Power Supply Cable 1 to 5 Splitter Hub for ATX Computer Case, Internal Motherboard Fan Extension, 5 Way Splitter Cord Wire for 4-Pin and 3-Pin Cooling Fans, 13 inch, Black by Randy Basque

So this fan hub is useful. But one thing I didn't like is that when I tried to connect it to the case fan, it seemed to ignore the 4-pin connector. I had to put it in the CPU fan header, which is a bunch of crap. My motherboard was bought in December and has no problems. The only reason I bought a fan header was because I needed one for more fans since my case only has one exhaust. So it doesn't make sense to me that it doesn't work in the case fan header. Unfortunately, I can't control the fan speed. So while the CPU fan is under load, all fans are under load. Really disappointing. But at least the fans are doing their job. I'll probably use other fans when I get the chance. Pros: Fans look cool RGB With variable breathing function Keeps your case cool. Cons: Loud a bit annoying under load RGB ONLY Variable breathing only No programmable fan app [but what can you expect for the $20-$30 range.]