A Cougar Case Fans Any Good?

Cougar fans are pretty decent. The ones you listed are similar, some are the default orange while others are black bladed fans. Some of the differences are whether they're pwm or not (3 pin or 4 pin). None of them are 119cfm, newegg did a poor job of translating the specs from the cougar website which lists the fan in question (v14hp) as being (cfm/m3h - 70.5/119.8) meaning airflow volume at max speed is 70.5 cubic feet per min (cfm) - or - 119.8 cubic meters per hour m3(cubed)/h. Not 119cfm.

70 cfm is still quite a bit of air. Taking a somewhat good sized case like the enthoo pro, it's 2.44 cubic feet in volume. Theoretically if you had a single intake and single exhaust moving 70cfm you'd be exchanging the entire case full of air 28.6 times a minute or once every 2 seconds. Obviously there are other things to consider, path of airflow, dead spots and so on but exchanging the case air that fast it would barely have a chance to heat up. Pretty much ensuring your case stays almost equal with ambient air temps outside the case.

Not saying to avoid the cougars if you like them but to give a comparison, the v14hb is rated 70.5cfm at 1200rpm with a 1yr warranty and it's $18. For a couple dollars more you could go with a noctua redux either 1200rpm (65cfm) or 1500rpm pwm (78.6cfm) and they come with a 6yr warranty. The redux are a couple dollars cheaper than the standard noctua's, leaving out any low noise adapters - just a fan and 4 screws but they also ditch the 2 tone cream/brown color for 2 tone gray.
http://www.newegg.com/Product/Product.aspx?Item=N82E16835608065

I've got 2 of the 140mm 1500rpm models in my case and they're not silent on full blast but don't need to be up that high to move a good amount of air either. Even full out most of the noise is air moving which can't be helped, once you're moving x amount of air hard enough past any restriction (in my case the top wire mesh and dust filter) it's bound to create wind resistance noise.

If you're unsure, go to youtube and search for various fan models. There are quite a few videos that show multiple fans with audio samples using the full range from 0-12v so you can see how much voltage it takes to start them etc. It's hard to get an idea for how 'loud' they are since it depends on your system volume but with multiple fans compared it can give you an idea of the tonal properties and pitch which is just as important. If you're sensitive to annoying sounds it's a good way to check them out before buying. You could easily have a fan at 25db with a 'whiny' pitch to it far more irritating than a fan at 30db with a more subdued lower pitched 'hum'.

If you're looking for quiet fans in the 140mm size, a couple more you might check out or consider are the phanteks http://www.newegg.com/Product/Product.aspx?Item=N82E16835709023&cm_re=phanteks_140mm-_-35-709-023-_-Product

or the bequiet silent wings
http://www.newegg.com/Product/Product.aspx?Item=9SIA68V21E0606&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

Both move a good amount of air and are incredibly quiet though the phanteks are limited to black/white which may or may not fit if you have a color scheme. The pure wings are all black. My case came with the phanteks 140 as a rear exhaust and even full out I barely hear it but it moves a lot of air. The silent wings are the fans that came on my cpu cooler and if they'd been available when I was case fan shopping I would have probably opted for those. Unfortunately bequiet's products are imported from germany and at the time the only place selling was on amazon for $40 a piece. Great $20 fans, not $40 fans lol.