AC Infinity AIRPLATE S1, Quiet Cooling Fan System 4" with Speed Control, for Home Theater AV Cabinets

Perfect for my use case - as in intake fan for an enclosed networking closet! Arrived very well packaged and installation was incredibly easy. It seems to be delivering the advertised CFM and is keeping the enclosure cool. No vibration & very quiet, not to mention the plastic they used for the housing is very high quality.Will be buying again for future projects!

Bought this solidly built fan kit to cut down on heat build up inside an A/V equipment cabinet that houses a 5.1 receiver and DVD player. Ordered using standard (free) shipping and received in 3 days, Unit is well packaged with good instructions for mounting. Clear plastic template for cutting the mounting hole and drilling the mounting screw holes is included-- a thoughtful touch.Installation was straight forward. I mounted the fan near the top back of the cabinet facing out to pull the hot air out. Existing openings allow the fan to pull cool air in from the front/bottom of cabinet. If the cabinet was sealed tighter, I would buy a 2nd kit, use the USB daisy chain to power it, and mount it facing in on the bottom of the cabinet to really move some air through.The only challenge was installing by myself: How to turn a screwdriver on mounting screws outside the cabinet at the same time as holding a pair of pliers on the mounting screw nuts on the inside of the cabinet?! A pair of vise grips locked on the nuts held them in place so I could tighten the screws from outside, thankfully. Otherwise, you may need a 2nd person for a few minutes.Fan can be powered either by USB or AC power. Fan also has a 2nd, short USB "dongle" for daisy-chaining additional fans: Another thoughtful idea. I plugged the fan into the switched AC outlet on my receiver, so the fan starts automatically when the receiver is powered up. Fan also has an easily removed foam filter. Kudos for a well thought out, well built unit.Most importantly, the fan keeps things cool-- even with both the receiver and DVD player running. With the sound off on the receiver, I can just about hear the fan if I put my head right by the open cabinet door. With the doors closed and with the sound on, there is no discernable noise from the fan. I'll be buying another for cooling a computer enclosed in a cabinet in my office. Highly recommended.

I bought one 4" (80mm) AC Infinity fan without the controller to cool the enclosed CPU section of my desk. I have a desktop computer housed in the desk CPU enclosure that puts off a substantial amount of heat and within 1-2 hours, I measured the temperature inside the desk CPU enclosure to be around 84F. Electronic components typically don't like being run in temperatures higher than 85F and will have a reduced lifespan if they are run hotter than 85F. My desk already had a preexisting opening from under the desk surface (where my feet go) to the top of the CPU enclosure. This opening was designed to allow monitor cables to be run from the top of the desk into the CPU compartment and measured 3.9" x 6.9". I installed the fan (blowing out) at the top of the opening and closed off the remaining bottom portion with a plate. The AC Infinity fan runs off an integrated USB port located on the back of my computer and (seemingly without effort) keeps the desk CPU enclosure at almost room temperature (plus maybe 1-2 degrees).Note: I did NOT have to use the USB "turbo" converter that came with the fan. I also did not drill any new ventilation holes into the desk CPU enclosure for air intake. It would appear that the natural 1mm cracks around the closed doors on both sides of the desk CPU enclosure are sufficient for allowing room temperature air to flow into the desk CPU enclosure.The really cool thing (no pun intended :)) is that when the computer goes to sleep, it not only stops producing heat but ALSO shuts down the integrated USB port which in turn shuts off the AC Infinity fan. It is a perfect system that negates the need for the optional AC Infinity fan controller. The AC Infinity fan runs so quietly that in a dead silent room, I can't tell if the slight hum I hear is from the AC Infinity fan or the louder fan located in my computer's power supply within the cabinet. I HIGHLY recommend this fan for this application!I have also used the AC Infinity 6" (120mm) fans in my much larger home entertainment cabinets and they also perform very well and very quietly.Update: After writing this review, I tried running the fan on the low setting and the temperature inside the CPU enclosure did begin to (very slowly) creep up. Also, on the low setting, the slight hum disappears (to my ears anyway). So, the fan running on high setting does add to the hum.I'm going to watch to see if on the low fan setting the temp stops rising at some point. If not, I'll run the fan on the high setting and not worry about it. I still don't need to use the "turbo" wall USB adapter that claims a 25% increase of airflow. But, it is nice to know I have that option if I add heat producing components to my desk's CPU enclosure.

This fan works GREAT and QUIET. I have this fan installed in an enclosed TOP Back blowing air out of an enclosed cabinet. The BOTTOM back of the enclosed cabinet has about a 5 inch round hole. The fan can easily change the flow of air based on your situation. I also purchased the AIRCOM S9 and that is also PERFECT.This is a good set-up for my situation based on my opinion and probably will not fit your configuration.I have a ROTEL AMP and then the AIRCOM S9 sits on that blowing air up and a ROTEL PRE-AMP sits on the AIRCOMS9. So, the AIRCOM is in the middle of the AIRCOM. My previous fan was so loud, it seemed there was an airplane taking off in my family room. Oh, the AIRCOMS9 is set for 3/4 on as that seems to be a good setting for me based on moving air and noise. Other reviewer have also set it at this setting....I used an accurate temperature gauge 6-inches from the open gaps of the Rotel and it was registering 150+ degrees plus WITHOUT the fans. The fans bought the cabinet temperature to 10-12 degrees plus the temperature in the house (ie house temp is 75 then the cabinet would be around 85 degrees 6 inches above the rotel opening). THIS IS FANTASTIC. The product looks GREAT and it is QUIET!!!! It looks PROFESSIONAL....Oh, I have a power strip so there is no reason for me to buy the remote option. I don't want power constantly going to the Rotels as our electric flickers too much!!! But, I do like remotes. Oh, the fan comes with a cut out for easy installation!!! What a GREAT product.