SilverStone Silent Foam SF01, Sound Dampening Acoustic EP0M Foam Material, Black, 21"x15", 4mm thick, 2 pcs

Pros: Dampens sound. Perfect for most MID-TOWER cases like mine. (Full towers will need a bit more to coat both panels). Cheap.

Cons: For what it is/the price it is, none really. Many unassuming customers may purchase this expecting a huge decrease in noise levels, and will be disappointed however. The name "Silent Foam" is a bit misleading.

Overall Review: KNOW WHAT YOU ARE BUYING! This product will not make a huge difference in noise levels if you have a very noisy system. It will decrease sound by a dB or two (I don't have any scientific way to measure the sound drop in my system unfortunately, but it did affect it, even prior to changing out my fans). This is a FINISHING touch product. The best way to get rid of the racket in your PC is to assess the moving parts (CPU/GPU fans, case fans, hard drives, etc) find the loudest offenders, and find replacements. For my system it was the 4x 80mm fans that were causing my noise woes. Replacing those fans with some low dB/moderate airflow models made a HUGE difference in noise levels. This foam is more of an icing on the cake product. It will kill small higher pitched noises mostly and just make the computer sound a bit more refined. There are some more expensive kits on the market that use different types of foam that can kill more noise, but for the price, this stuff does alrigh

Pros: Two very large sheets. Forgiving adhesive allows for re-seating. Easily sticks to metal, plastic. Can hide wires under this foam to make case innards look more tidy. Black color with no words/names/logos on it. One package of this is enough to cover a mid tower case. Modestly reduces high pitch noise (see Other).

Cons: Thickness of sound dampening foam determines effectiveness -- 7mm would be better than 4mm. Once adhesive dries, it is difficult to remove. Easiest to apply to a bare case-- before adding components. Foam acts as a slight insulation, so make sure you have good airflow in your case. If you go to a rock concert and stand in front of the speakers while holding each pad in front of your ears, you are still going to go deaf -- this product will NOT make a noisy pc quiet on its own. See Other.

Overall Review: Philosophy of Quiet PCs/How To: The first step in a quiet pc is always the fans. Even expensive cases come with noisy fans. Super high volume fans are very noisy. And counter-intuitively, super high airflow does NOT make your PC run any cooler than moderate and unobstructed airflow. You might want to read that previous sentence again. Noctua NF-S12B are the best of the best when it comes to silent airflow, 56.9m3/h at 6.9dBA is unbeatable. Sound bounces off hard surfaces. Open-cell foam captures sound waves, which is the basic principal behind acoustic dampening coverings. Also, sound bounces off corners, so rounded corners are better than 90 degree angles. Apply this foam to all the flat surfaces of your case, cutting the foam so that it goes 1cm or so under your motherboard. Make sure you also get the inside panel of the case that faces the CPU Cooler (cut around the window if you have one and want to maintain the pretty view). Sound bounces, so don't forget to cover objects such as the back of your DVD. After the case is lined, you can round off the corners: At the corners, mark off ~2cm above and below the corners, next you are going to want to place something in the corner like pencil or rolled up piece of foam (you want a curve, not a 90degree angle), then cut and apply a second layer of acoustic foam to round out corners. If you bought quiet fans, your noisiest component is going to be your graphics card (or if water cooled, the pump). Most (air) CPU-Coolers are a standard size and can be fairly easily replaced, expensive CPU-Coolers usually have PWM fans with the speed controlled by the system board and low noise adapters included. So double check whatever your fans are pointing at and make sure you have some foam covering everywhere you can.

Pros: Considering it only costs $16, this foam suppresses noise exceptionally well when. This might be because I put it on almost everything in my case that was not a hole for ventilation or a part of a mounting apparatus(not in the interior of the bays). Also, I covered a perforated mesh of the 5.25'' drive bay on the front of my case. However, I also added two very quiet fans with great CFM/noise(Enermax T.B. Silence). Lastly, my case was already somewhat quiet, but I purchased this because my graphics card has coil whine. Since it's toward the center of the case, the foam should serve to absorb its noise better than it would for case fans, which allow much of their sound to escape directly out of the case. There was more than enough foam to cover absolutely all surfaces(not ventilation holes) of the interior of my mid-tower case, and even enough left to double up at least a quarter of it(which I did not do, since it would be a bit of a waste for my computer). For a full-tower case, there is still definitely enough to cover all or most of the interior. Note that this is very probably not a sole solution to case noise.

Cons: None, really.

Pros: The dimensions are NOT 21 inches by 15 inches. I measured it to be 582 mm by 382mm (1-2mm bigger than the packaging specifies). This comes out to 22.9 inches by 15 inches, for a total of an extra 57 square inches of extra area. If you planned carefully for 21x15, then you are in for a positive surprise. The other product details are accurate. The density is such that it takes a reasonable amount of effort to squish the foam to half its thickness. So, its more dense than typical egg-crate foam, but less dense than a foam block. As such, this open-cell foam will do a decent job of reducing high pitch noises, but is not necessarily what you would mount a vibrating object to. One package should be enough for a mid-tower case. If you want to cover the top, bottom, back panel, part of the mother board tray, and front bezel of a full tower, you would probably need the second package. For my Corsair 900D, I went for three packages, and that will be enough but not with generous extra.

Cons: The package indicates the item was packaged 3 years ago. While the foam does not appear to have degraded, that is the only thing I could think to enter as even a potential negative.

Overall Review: It should be moderately temperature resistant, but I would still be cautious about lining areas around the CPU and video card. I have not experienced a horrible odor from this product, but I'm not going to test it too far. If you should wish to remove it one day, I would recommend 99% isopropyl alcohol from a drug store or acetone; but I cannot see why anyone would remove it.

Pros: Reduced vibration and whoosh noise from my already silent noctua case fans. Actually used an acoustic measuring device, reduced sound from 4-5 decibels.

Cons: Sticky as heck! Be patient when installing. Get a razor or exact-o knife. Need to get two kits for a full ATX tower, but that does not concern me, just a heads up for the big towers!

Overall Review: My aluminum Lian li a05fna case makes a sudden 'thud' noise instead of a 'pang' and is noticeably quieter.

Pros: It Will help reduce noise & vibration from your interior case parts. Sticks where you put it. Easy to cut with scissors. Makes your case feel & sound more solid.

Cons: It's sound dampening foam not a miracle foam. If you want a quiet case get quiet parts. It wiil not come off easily, so put it where you mean to & leave it alone. It's a pain in your sitting part to remove. Don't put this stuff over case fan openings you might use in the future.

Overall Review: Scissor cut it to size, start peeling backing paper off one side of the foam & as you apply it peel the rest of the backing paper off as you go. Try not to stretch the foam or get bubbles underneath. But it's easy enough to pop bubbles though. It will dampen some noise & vibrations from your inside your case.

Pros: -Completely got rid of my coil whine! -No bad smell like others have reported -Enough to line my whole case

Cons: -none for my situation

Overall Review: Bought this for my HTPC with a GTX 1050 that had a very high pitched whine when playing videos. I sit about 10 feet back and the whine was very annoying in quiet movie scenes. Figured I would give this product a shot before swapping components. TBH I had no idea if it would make any difference. I was shocked when the whine was completely gone! To be fair, it did not seem to make any difference to lower pitched fan noises. In conclusion, I'm very happy with the purchase but I think a lot people are using this product with the expectation of silencing noisy fans and are disappointed. From my experience, this will absorb very high pitched noises but not do much for standard fan noise.

Pros: I purchased this foam over 6 years ago for use in my Silverstone Raven case. The foam comes in two large sheets that can easily be cut to fit any space. The adhesive is very strong and has not come loose in over 6 years. The foam also does not seem to collect dust. I have this on both side panels of my case (I cut it to fit around the case window). I also used it under/around the power supply. I find it helps reduce vibrations for my fans as well as cables in the back of my case. As my case has lots of vents, it doesn’t do much for dampening the sound of fans (in my situation).

Cons: Can be a little tricky to mount over a large surface. Go slow so you don't get bubbles.

Overall Review: I recently purchased an In Win 303 case and bought more of the foam for that case. The foam I just recently purchased is the same thickness and quality as the 6 year old version, although, the price has almost doubled from 6 years ago. I will always buy this product for my new computer cases.