--- product_id: 1176317 title: "AC Infinity, MULTIFAN S3 Quiet USB Cooling Fan" brand: "ac infinity" price: "SAR 100" currency: SAR in_stock: true reviews_count: 13 category: "Ac Infinity" url: https://www.desertcart.com.sa/products/1176317-ac-infinity-multifan-s3-quiet-usb-cooling-fan store_origin: SA region: Saudi Arabia --- # 52 CFM airflow 18 dBA ultra-quiet 67,000 hrs dual-ball bearing lifespan AC Infinity, MULTIFAN S3 Quiet USB Cooling Fan **Brand:** ac infinity **Price:** SAR 100 **Availability:** βœ… In Stock ## Summary > πŸ†’ Stay cool, stay ahead β€” silent power for your tech sanctuary. ## Quick Answers - **What is this?** AC Infinity, MULTIFAN S3 Quiet USB Cooling Fan by ac infinity - **How much does it cost?** SAR 100 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/1176317-ac-infinity-multifan-s3-quiet-usb-cooling-fan) ## Best For - ac infinity enthusiasts ## Why This Product - Trusted ac infinity brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Plug & Play USB Power:** Seamlessly powers from any USB port on your AV gear or gaming consolesβ€”no extra adapters needed. - β€’ **Whisper-Quiet Cooling:** Ultra-quiet 18 dBA noise level keeps your workspace distraction-free. - β€’ **Precision Airflow Control:** Multi-speed controller lets you dial in the perfect balance of airflow and silence. - β€’ **Compact & Versatile Design:** Slim 4.7-inch profile fits discreetly in cabinets, laid flat or upright with anti-vibration rubber feet. - β€’ **Durable Dual-Ball Bearings:** Engineered for longevity with a 67,000-hour lifespan, ensuring reliable performance. ## Overview The AC Infinity MULTIFAN S3 is a UL-certified, ultra-quiet 120mm USB fan delivering 52 CFM airflow at just 18 dBA noise. Featuring a multi-speed controller and durable dual-ball bearings rated for 67,000 hours, it’s designed to efficiently cool electronics like gaming consoles, DVRs, and computer cabinets. Its compact size and USB power compatibility make it the perfect stealthy cooling solution for professional setups craving silent, reliable airflow. ## Description desertcart.com: AC Infinity MULTIFAN S3, Quiet 120mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling : Industrial & Scientific Review: AC Infinity AI-MPF120A cooling fan -- Quiet and effective for confined heat-producing electronics -- RECOMMENDED - Update 3/2018: Expansion of the home network to include a home office resulted in another cooling fan for my crowded computer center (converted credenza, snug). The newest AC Infinity now has a variable speed switch, and costs less. Cabinet temps seldom exceed 5-7 degrees over the ambient room temp. The 120mm seems to be the best fan for the money. Original review: Small, but not so small that it can't move air. QUIET! Effective Once "installed" (more like placed in a cabinet), they are set-and-forget. I purchased 2 of these, being unsure att eh time how effective they would be in a renovated office credenza-become-computer center. Within the top half of this cabinet space, just under 3 cubic feet (9"h x 18"d x30" w) I have a satellite modem (runs very warm), 2 routers and a switch, and a desktop refurbished as a firewall. Before stuffing all these components into this space, they occupied the lower half of a bookcase that sat atop the credenza, and all were clearly producing heat. Therefore the notion that these AC Infinity fans (or similar) would be required inside the smaller credenza space. I started by placing one fan in the rear of the cabinet to push air (cool air from below) across the very warm sat modem and router out to the front of the open cabinet, and there I placed fan #2 to help pull warm air out and into the room. Both fans run exceptionally quiet, and I needed to check occasionally to reassure myself they were still spinning. There is a subtle movement of air as well, not a breeze; simply lick the back of your hand and hold it 2 feet away and you will notice the cooling effect on your skin (an old IT "procedure" for detecting failed equipment fans, always works if not sometimes salty). An indoor/outdoor thermometer served as a great way to measure temps outside the credenza and deep inside (placing the remote temp sensor near to the warmest component, the sat modem in my case). For 2 days the interior cabinet temps remained within 6-9 degrees of the room temp. So I removed fan # 2 (front of the cab opening), all without more than 1 degree increase resulting. Bottom line: small but moves air (don't expect a whirlwind or obvious breeze, it's pretty subtle), and very quiet. The rubber feet on all corners eliminate any vibration noises or humming, and also keeps the fan from moving anywhere. The alternative might be the AI-MPF80A2 dual 80mm fans (52cfm total) if space is an issue. If heat is more of an issue than what I described here, consider the AI-MPF120A2 dual 120mm fans, 104cfm total. Depending on how my single 120mm handles heat this coming summer, I may opt for this dual 120mm fan setup. As for the optional fan thermostat and speed control, I simply let my fans run off any available USB port and do their work. Recommended, keeping your gear cool (or not hot) at this price is great insurance. Review: Very good cooling fan. Multiple speeds. Good airflow. Very very quiet to silent! - The AC Infinity 120mm fan is a solid & quiet cooling fan. I needed something to place either near or on top of my Firewalla Gold as it gets very hot at times and I wanted to see if something could be done to cool it down with zero noise. For $14 I decided to give this well-reviewed cooling fan a shot. Long story short, this fan works flawlessly. It checks all the boxes. Silent running. Multiple speeds (I keep mine on the lowest as that is all that is required to bring the Firewalla cooling fins down to room temp or lower). Inexpensive. I have a router right next to the Firewalla so just used the USB from that for power but any USB type A will do. I also purchased their 80mm dual fans as well and using those on a Comcast Cable X1 box that gets hot in my entertainment center. These help move the hot air out of the semi-enclosed space the box is in. ## Features - Ultra-quiet UL-certified USB fan designed to cool various electronics and components. - Features a multi-speed controller to set the fan’s speed to optimal noise and airflow levels. - Dual-ball bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright. - USB plug can power the fan through USB ports found behind popular AV electronics and game consoles. - Fan Size: 4.7 x 4.7 x 1 in. | Airflow: 52 CFM | Noise: 18 dBA | Bearings: Dual Ball ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00G05A2MU | | Air Flow Capacity | 52 Cubic Feet Per Minute | | Best Sellers Rank | #2 in Computer Case Fans | | Brand | AC Infinity | | Brand Name | AC Infinity | | Compatible Devices | Amplifier | | Cooling Method | Air | | Customer Reviews | 4.7 out of 5 stars 5,729 Reviews | | Global Trade Identification Number | 00854759004310 | | Item Dimensions L x W x H | 4.7"L x 1"W x 4.7"H | | Item Weight | 0.02 Pounds | | Manufacturer | AC Infinity | | Material Type | Rubber | | Maximum Rotational Speed | 1300 RPM | | Model | FBA_AI-MPF120A | | Noise Level | 18 Decibels | | Number of Items | 1 | | Part Number | FBA_AI-MPF120A | | Power Connector Type | USB | | Product Dimensions | 4.7"L x 1"W x 4.7"H | | UPC | 854759004310 | | Unit Count | 1.0 Count | | Voltage | 5 Volts | | Wattage | 5 watts | ## Product Details - **Brand:** AC Infinity - **Compatible Devices:** Amplifier - **Cooling Method:** Air - **Material:** Rubber - **Maximum Rotational Speed:** 1300 RPM - **Noise Level:** 18 Decibels - **Power Connector Type:** USB - **Product Dimensions:** 4.7"L x 1"W x 4.7"H - **Voltage:** 5 Volts - **Wattage:** 5 watts ## Images ![AC Infinity, MULTIFAN S3 Quiet USB Cooling Fan - Image 1](https://m.media-amazon.com/images/I/71ttvZ-OaIL.jpg) ![AC Infinity, MULTIFAN S3 Quiet USB Cooling Fan - Image 2](https://m.media-amazon.com/images/I/715TZNiNZAL.jpg) ![AC Infinity, MULTIFAN S3 Quiet USB Cooling Fan - Image 3](https://m.media-amazon.com/images/I/61937PlfmYL.jpg) ![AC Infinity, MULTIFAN S3 Quiet USB Cooling Fan - Image 4](https://m.media-amazon.com/images/I/71Wzh47qmHL.jpg) ![AC Infinity, MULTIFAN S3 Quiet USB Cooling Fan - Image 5](https://m.media-amazon.com/images/I/61-6CgQl2iL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What is the best position top or bottom of audio receiver? Vents are on top and bottom.** A: I would actually use 2 fans. One to push and one to pull. I used these for a Dish Network receiver which runs very hot inside the cabinet. I used one fan to blow air into the box and one fan to pull air out of cabinet. Works great. **Q: Can someone out in the community help me!...Excuse my stupidity...there are two usb plug ins..One goes to the wall usb port..how bout the other one?** A: The other port is for daisychaining them together. Like if you have 2 fans and wanted to run both through the same power supply, you'd plug one into the power supply and then the other fan through the second port on the first fan. **Q: I am thinking about buying this to cool off my PS3 original. should I get the single or dual fan?** A: Honestly I think dual fans are overkill. I'm using a single fan in my stereo cabinet with an Onkyo TX-NR737 head unit (125 watts into 7 channels, though I'm only using 3 powered by that amp) plus a Samsung UBD-M8500 Blu-ray and streaming player. That combination is easily putting out at least 500 watts (maybe more) of heat when it's running a good movie ... your PS3 doesn't do more than about 200 watts per Wikipedia. So the fact that one fan running only on medium speed, plus some decent vent holes, takes care of all the heat from my system means no way do you need 2 fans. Just make sure there's some good input/output air holes or grate or something to provide space for the air to flow through your cabinet, and a single fan should more than do the trick. **Q: What is the extension of the usb cord , is it 6ft or** A: It's about three feet, on mine. I have the AC Infinity thermostat, it has it's own power cord to the fans. On my cabinet, I have it powering three fans. It has a big Yamaha receiver and Emotive amp. and it stays nice and cool. ## Customer Reviews ### ⭐⭐⭐⭐⭐ AC Infinity AI-MPF120A cooling fan -- Quiet and effective for confined heat-producing electronics -- RECOMMENDED *by J***K on January 29, 2015* Update 3/2018: Expansion of the home network to include a home office resulted in another cooling fan for my crowded computer center (converted credenza, snug). The newest AC Infinity now has a variable speed switch, and costs less. Cabinet temps seldom exceed 5-7 degrees over the ambient room temp. The 120mm seems to be the best fan for the money. Original review: Small, but not so small that it can't move air. QUIET! Effective Once "installed" (more like placed in a cabinet), they are set-and-forget. I purchased 2 of these, being unsure att eh time how effective they would be in a renovated office credenza-become-computer center. Within the top half of this cabinet space, just under 3 cubic feet (9"h x 18"d x30" w) I have a satellite modem (runs very warm), 2 routers and a switch, and a desktop refurbished as a firewall. Before stuffing all these components into this space, they occupied the lower half of a bookcase that sat atop the credenza, and all were clearly producing heat. Therefore the notion that these AC Infinity fans (or similar) would be required inside the smaller credenza space. I started by placing one fan in the rear of the cabinet to push air (cool air from below) across the very warm sat modem and router out to the front of the open cabinet, and there I placed fan #2 to help pull warm air out and into the room. Both fans run exceptionally quiet, and I needed to check occasionally to reassure myself they were still spinning. There is a subtle movement of air as well, not a breeze; simply lick the back of your hand and hold it 2 feet away and you will notice the cooling effect on your skin (an old IT "procedure" for detecting failed equipment fans, always works if not sometimes salty). An indoor/outdoor thermometer served as a great way to measure temps outside the credenza and deep inside (placing the remote temp sensor near to the warmest component, the sat modem in my case). For 2 days the interior cabinet temps remained within 6-9 degrees of the room temp. So I removed fan # 2 (front of the cab opening), all without more than 1 degree increase resulting. Bottom line: small but moves air (don't expect a whirlwind or obvious breeze, it's pretty subtle), and very quiet. The rubber feet on all corners eliminate any vibration noises or humming, and also keeps the fan from moving anywhere. The alternative might be the AI-MPF80A2 dual 80mm fans (52cfm total) if space is an issue. If heat is more of an issue than what I described here, consider the AI-MPF120A2 dual 120mm fans, 104cfm total. Depending on how my single 120mm handles heat this coming summer, I may opt for this dual 120mm fan setup. As for the optional fan thermostat and speed control, I simply let my fans run off any available USB port and do their work. Recommended, keeping your gear cool (or not hot) at this price is great insurance. ### ⭐⭐⭐⭐⭐ Very good cooling fan. Multiple speeds. Good airflow. Very very quiet to silent! *by M***D on April 6, 2025* The AC Infinity 120mm fan is a solid & quiet cooling fan. I needed something to place either near or on top of my Firewalla Gold as it gets very hot at times and I wanted to see if something could be done to cool it down with zero noise. For $14 I decided to give this well-reviewed cooling fan a shot. Long story short, this fan works flawlessly. It checks all the boxes. Silent running. Multiple speeds (I keep mine on the lowest as that is all that is required to bring the Firewalla cooling fins down to room temp or lower). Inexpensive. I have a router right next to the Firewalla so just used the USB from that for power but any USB type A will do. I also purchased their 80mm dual fans as well and using those on a Comcast Cable X1 box that gets hot in my entertainment center. These help move the hot air out of the semi-enclosed space the box is in. ### ⭐⭐⭐⭐⭐ What a great little piece of equipment *by R***A on May 5, 2026* Yes, it's quiet. (Although to be honest, I'm deaf, but my wife doesn't complain.) Better yet, it brings some of my hot running equipment rapidly down to room temperature: a microappliance, a Thunderbolt dock and an SSD enclosure, as well as my Mac Studio. Summers coming, don't fry your equipment! ## Frequently Bought Together - AC Infinity MULTIFAN S3, Quiet 120mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling - AC Infinity MULTIFAN S7, Quiet Dual 120mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling - AC Infinity Turbo Fan Power Adapter, for MULTIFAN Series USB Fans --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.sa/products/1176317-ac-infinity-multifan-s3-quiet-usb-cooling-fan](https://www.desertcart.com.sa/products/1176317-ac-infinity-multifan-s3-quiet-usb-cooling-fan) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-07-10*