Phobya38177 Black Cooling Accessory (120mm)

Pros:Seems to be made of a quality rubber and certainly is 7mm thick. Provided a good seal for my PC cooler radiator and fans.Cons:4 stars because they are expensive little buggers, but it beats making them yourself.Notes:Using only the Phobya shroud to create a plenum between a fan and a radiator likely will not make much difference in temperatures as 7mm is not a large enough gap. PC fans do not push air straight forward. Rather, they push air forward and out at an angle. When a PC fan is placed next to a radiator used for water cooling, the air is being routed to the outer rim of the radiator. Additionally, no air is being moved where the fan motor is located as it mounted flush to the radiator. Normal fan/radiator set ups are inefficient. The Phobya shroud at least provides a seal to prevent the air and static press from leaking or dissipating before it ever gets through the radiator.To get the full benefit of these shrouds, I used them in a custom cooling set up with a  Corsair Hydro Series Extreme Performance Liquid CPU Cooler H80i  as seen in the attached photo. I replaced the Corsair fans with 2  Scythe DFS123812H-3000 Ultra Kaze 120mm x 38mm Case Fan - 3000RPM . I then took an old 120mm x 38mm fan and removed the fan assembly, using the bezel as a duct to create a plenum between the push fan and the radiator. To get this to work, I had to mount the push fan, the duct, and one shroud on the exterior of the case. Otherwise, the set up would have taken up too much space inside the case and blocked access to the RAM. My PC case had a typical fan grill built into the back. However, this grill was beveled out, making it hard to mount anything to the outside. I took tin snips and hacked away the grill. Unfortunately the beveled grill was wider than a typical 120mm fan and there were small gaps that I had cut away that were not covered by the duct. To make a good seal, I glued the shroud to the back of the case and stretched it slightly to seal the gaps between the cut out fan grill and the duct. This made a perfect seal! I then added another shroud between the PC case and the radiator (notated, but not seen in the photo). Eventually I will place one between the radiator and the pull fan as well. While not the prettiest set up in the world, this was highly effective and I could not have done it without these shrouds. Compared to the H80i with stock fans, no shrouds and no duct, this set up lowered temps by 15 degrees Fahrenheit at full load on my OC'd 4930K!

This is a basically a rubber gasket that is 1/4 of an inch thick. I used it on a Cooler Master GeminII S524 CPU Cooler.This cooler has the fan sitting directly on the fins so I used this Item to create a small plenum area between the fan and cooler. This made a slight reduction in the cooler noise. The shape of this product didn't match the fan frame exactly but still worked. The center area between the screw holes isn't compressed and moves freely under the fan frame. This doesn't cause any problem or air leakage, I am just noting it here. I recommend it highly if you need some space under a fan.

meh, wouldn't buy again performance gain was non existent. made it a pain in the you know what to install fans to my radiator

it's a good spacer, allows for more even airflow, and prevents all vibration.