AC Infinity MULTIFAN S2, Quiet 120mm USB Blower Fan with Speed Control, UL-Certified for Receiver DVR Xbox Modem AV Cabinet Cooling...

I've used 2 fans with the temperature sensor slightly raised in the middle. Have the fans on Low, so when the temperature rises when I'm using the AVR the fans switch on. Works brilliantly and the fans are very silent.

I am using this as a blower inside a reptile enclosure which is 3 feet tall, in order to circulate warm air to the bottom etc because without it the bottom was staying quite cool and the top was a sauna, this helps and also gives better air circulation. Its quiet enough not to even be noticeable and I have it ont he lowest setting, Downward facing and relatively easy to conceal it has been great so far. You can see it kind of in the right side in the picture but its more or less just "in" there by the cables because its so light- its not going anyplace. It comes with rubber isolators for installing it as well.

As a gaming enthusiast, I put a lot of time and effort into building a high-performance gaming rig, and I need reliable cooling solutions to protect my investment. AC Infinity's blower fans efficiently remove hot air from my computer's radiator, and their noise control and automation technology ensure the fans operate at the ideal speed to keep my system cool without excessive noise. The quality of their products is outstanding, and their engineering expertise is evident. I also use a AC Infinity Blower to keep an LCD backplate and GPU backplate cool under high GPU loads (leads to high thermal output). My CPU, GPU and LCD backplate temperatures have all remained well within safe limits, thanks to AC Infinity's efficient cooling hardware. I appreciate AC Infinity's commitment to delivering exceptional products and top-notch customer service. They understand the significance of keeping high-end electronics cool and have developed effective, automated, and reliable cooling solutions. My experience with AC Infinity cooling products has been nothing short of impressive. If you're searching for a reliable company to keep your gaming machine cool, AC Infinity should be your top choice. Their dedication to quality, innovation, and customer satisfaction is second to none. As a loyal customer, I will continue to purchase and recommend AC Infinity products to anyone seeking the best in cooling technology. I thank God I found AC Infinity products because the results speak for themselves. No more high thermals, no more noisy fans and no more worry about keeping things in safe thermal zones even under demanding workloads.

My AV receiver is located on the top shelf of a wooden built-in media cabinet. I have no doors on the cabinet, and any heat emanating from my AV equipment must vent through the front. My receiver sits on the top shelf and has about 4 inches of clearance above the cooling vents. However, heat used to get trapped between the top of the receiver and the top of the cabinet. Not anymore though! I placed a AC Infinity MULTIFAN S2 on top of the receiver vent and it blows all heat out the front of the cabinet. What I like about this fan is (i) it is well made, (ii) it has insulated rubber feet to isolate itself acoustically from the receiver, (iii) it has three fan speeds, (iv) its a blower configuration that blows the air forward vs. upwards, and best of all (v) it is very quiet. In the "Low" setting - which is sufficient for my needs - the fan's noise level is barely a whisper and cannot be heard across the room when all music is off. The fan is powered by USB or optional AC adapter. To mine I added a compatible thermal switch that activates the fan only when heat build-up exceeds a set point set by me. Once the receiver cools down after turning it off, the thermal switch turns the fan off. I highly recommend the fan, AC adapter, and thermal switch - the link for the switch follows: https://www.ZeeBooth.com/gp/product/B078PY8L9F/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

I'm using this fan in my small Beer fridge on my patio. My inexpensive fridge had no fan for moving the air and with the cheap temp controls would either freeze my beers or keep them too warm. I couldn't get it to stay in the 38 to 40 degree range. The back of the fridge, where the coils were would freeze into a thick sheet of ice, then so would the beer. I've had this running in my fridge now for about 2 weeks and my beer is at a solid 38 degrees! and no ice accumulation. I just hung it from a shelf with a couple of tyraps, ran the cord with speed control out the hinge side of the door and plugged it into a old cell phone charger with an usb port. Not really what it was designed for maybe, but I love it! Displaces only two beers! UPDATE: After running continuously for 4 months, fan impeller started to get a wobble and got very noisy. Now two months later if finally died. Guess it wasn't meant to run 24/7. So it lasted about 6 months. It worked great while it worked. So my decision is ...is it worth $14 for six months? maybe. I'll probably get another one just because its so easy to install. It's prewired so I just have to plug it into a spare usb charger. But I'll keep looking for a more durable solution. UPDATE 2: Did buy another one.Just didn't find anything else I liked. This one came with nice rubber feet and seems to be better built. Its much quieter than my first one even at top speed. Hope it lasts longer than the first one..Stay tuned... UPDATE 3: My second unit has been going strong for 7 months now. 24/7 No noise, I check it every now and then to make sure its still going. Its circulating the air in my mini fridge so the back never ices up and everything stays at a constant 40 degrees. In the past the back would freeze up with thick sheet of ice and cans in the back would freeze. UPDATE 4: 16 months and going strong! This second unit has been running 24 /7 in my beer fridge for 16 months, what can I say more than that! Update 5. 3/14/19.. Second fan still going strong! Not going to go the math for #of months but... Just bought 3 more to put into an enclosed entertainment cabinet that is getting too hot. New fans seem to be same quality as second fan.