Nexus PWM Series SP802512H-03PWM 80mm Case cooler

Pros: PWM

Cons: Made a ticking noise, louder then the fan I was trying to replace.

Other Thoughts: I have bought several Nexus non-pwm 120 fans and always been happy. The 92mm non-pwm Nexus fans I bought have also been very quiet, so I expected even more from a pwm fan. It was a dissapointment thee was a ticking noise I've never heard before from a Nexus fan, so I RMAed it.

Pros: Unknown, I couldn't install it

Cons: I am disappointed with this case fan. I was hoping to use this for the side 80mm fan slots in my Silverstone LC13B (http://www.newegg.com/Product/Product.aspx?Item=N82E16811163044) HTPC case. Sadly, the screw holes in the side for this case are incompatible with the silicon fan mounts that came with this fan. Nor could I use standard case screws because the fan has excess plastic which prevent them from mounting correctly.

At the $10, it's hardly worth my effort to try to return this item, so I guess I'm just out the cash

Pros: Quiet. Keeps my build Cool.

Cons: None.

Other Thoughts: I ordered 2 of these to mount in a SILVERSTONE Black Aluminum front panel, 0.8 mm SECC body Lascala Series LC20B-M ATX Media Center / HTPC Case. They work great and do the job.

My build:
1, Intel BOXDZ68BC LGA 1155 Intel Z68
4, Seagate Barracuda ST3000DM001 3TB 7200 RPM (RAID 5)
2, SAMSUNG 830 Series MZ-7PC256D/AM SSD (RAID 1)
1, Seagate Expansion 3TB USB 3.0 Desktop External Hard Drive (backup)
1, CORSAIR Vengeance 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600
1, High Current Pro HCP-750 750W TX12V v2.3 Power Supply

Running:
Windows Server 2008 R2, MS Exchange 2010, Yosemite Server Backup 9.1
IIS, DHCP, DNS, Etc...

Pros: None, disappointed like most reviewers.

Cons: It's noisy even at low rpms. Not quiet as advertised.

Pros: PWM, 4-pin connector. Effectively keeps my CPU cool

Cons: Very noisy, even at low speed. Definitely not the "World's Quietest Fan". In fact, I think this is the loudest 80mm fan I've ever owned. Very disappointing!

Other Thoughts: Returning it isn't worth the trouble, but I'll be looking for a replacement right away.

Pros: Clean design, quiet at moderate speeds, PWM control.

Cons: Quite noisy at full speed, unlike the 120mm version which is pretty quiet. Most importantly, this came with a 4-pin connector that is different from the 120mm and 92mm versions and different from the picture on the website (!!) that has the notches at positions 1 and 4 rather than 1 and 3 which prevents this from being used with most other male connectors on splitters/extensions. I had to buy the proper Molex connectors (proper Molex too, much higher quality) that has the correct notches and corresponding crimps which added cost to the purchase.

Other Thoughts: Perhaps I got two fans from a bad batch since my other fans from the same PWM lineup came with the correct connectors and the website photo also shows the correct connector.

Pros: PWM and quiet

Cons: None so far

Other Thoughts: This fan did the trick. The exisiting fan on the CPU heatsink was too loud. You can't even hear this one, unless you max CPU usage (burn-in test) and the temp rises, causing the fan speed to increase. Keeps CPU under 50C after >1hr of max CPU usage.

Pros: Looks cool

Cons: Annoyingly noisy above 1200-1400 RPM.
These fans are definitely not "World's quietest fans!" as Nexus proclaims on the packaging.

Other Thoughts: I am unhappy with this purchase. I paid premium for these fans because what I really needed are quiet fans to replace two fans in HP EX470 Media Smart home server. The original fans gradually became noisy. These fans are supposed to be "World's quietest!" - what a bold claim! At the same time they supposed to have a better CFM than the ones they have replaced in the HP box. Both claims turned out to be false. I find Nexus fans to be anything but quiet above 20-25% (1200-1400 RPM) - louder than the original fans at 50% (1600 RPM). At the same time they aren't as effective at cooling so I ended up with higher temperatures and noisier environment at the same time.
Unfortunately returning them back to NewEgg is cost prohibitive. I'll never buy Nexus fans again.

Pros: I didn't realized this but newegg was good enough to refund my money. I went and purchase the non-PWM version which has the three pins or 4pin molex converter for power supply connector. Good reviews on this case fan. quiet so far.

Cons: none yet

Pros: Pretty quite, turns around moves air. Fans should be like good children seen but not heard. These fans are liek a good child.

Cons: none

Other Thoughts: Swaped out some crummy fans that came with a computer, person whos computer it was thought I had taken out the fans they where so used to hearing the huge noise.