AC Infinity MULTIFAN S3, Quiet 120mm USB Fan for Receiver DVR Playstation Xbox Computer Cabinet Cooling

Pros: Low setting is near-silent, unnoticeable unless it's next to your head and you're a Ferengi. Does the job of cooling the enormous wifi router I got. USB power off the router itself was easy, and the rubber feet meant installation was "gee I guess I'll just lay it on top" and done.

Cons: Did not grant 3 wishes. Does not fly under own power. Somehow my life is still devoid of meaning.

Overall Review: Simple, works, quiet, and the constant airflow does quite a bit to mitigate temperatures for devices.

Pros: Extremely quiet, comes with cages. 1 year warranty, hassle free exchange.

Cons: I could do without the cheap speed controller switch. I had two of these fans fail after 9 months, but I think it may be due to the switch going bad. Thankfully AC Infinity is sending me new ones!

Overall Review: I bought these fans to replace the old airplane-sounding AC fans in my rack server cabinet. They're fast and quiet.

Pros: These are nice. This is the second one that I bought because they work so well. Packaging is quality, the unit itself has a quality feel. Worth every penny.

Cons: None

Pros: * Very quiet * Minimal vibration due to removable rubber feet on both sides; this won't move if you use it in a horizontal orientation * Non-removable (wired directly to the fan) USB power cable has an extra USB connection for additional USB devices * Removable fan grill on both sides to prevent damage to blades (or fingers) * Inexpensive * Well engineered and thought through, an excellent buy

Cons: The only down side is that there is only one size (120mm).

Overall Review: This is what you need if you want an extra fan to cool external devices like a router (like I did), or want to mount a cooling fan inside a box. These are so nice that I bought a spare.

Pros: You can chain them so you don't loos a USB Port. This is key for setting this on top of electronics with limited USB ports.

Cons: The cable is a bit cluttered with the control switch and the USB adaptor.

Overall Review: I purchased this to sit on top of my new ASUS RT-AC5300. Routers I've owned seem to drop more when they run hot. This fit perfectly over the upper vents and sits stable. Plugs into the USB port on the router so I don't need to wire it tot a power outlet. I plan to buy a few more.