--- product_id: 60827217 title: "MULTIFAN S2, Quiet 120mm USB Blower Fan | with Speed Control UL-Certified for Receiver DVR Xbox Modem AV Cabinet Cooling" brand: "ac infinity" price: "€ 46.80" currency: EUR in_stock: true reviews_count: 13 category: "Ac Infinity" url: https://www.desertcart.hr/products/60827217-multifan-s2-quiet-120mm-usb-blower-fan-with-speed-control store_origin: HR region: Croatia --- # 35 CFM airflow Ultra-quiet 17 dBA noise USB-powered convenience MULTIFAN S2, Quiet 120mm USB Blower Fan | with Speed Control UL-Certified for Receiver DVR Xbox Modem AV Cabinet Cooling **Brand:** ac infinity **Price:** € 46.80 **Availability:** ✅ In Stock ## Summary > ❄️ Cool your tech, not your vibe — silently and stylishly. ## Quick Answers - **What is this?** MULTIFAN S2, Quiet 120mm USB Blower Fan | with Speed Control UL-Certified for Receiver DVR Xbox Modem AV Cabinet Cooling by ac infinity - **How much does it cost?** € 46.80 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/60827217-multifan-s2-quiet-120mm-usb-blower-fan-with-speed-control) ## 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 - • **Built to Last:** Dual ball bearings rated for 67,000 hours of reliable, vibration-free operation. - • **Space-Savvy Design:** Low-profile rear exhaust fits tight shelves and crowded setups. - • **Customizable Airflow:** 3-speed controller lets you dial in perfect cooling vs. silence balance. - • **Plug & Play USB Power:** No extra adapters—power directly from your console or AV device. - • **Whisper-Quiet Cooling:** Keep your AV gear chill without the noise distraction. ## Overview The AC Infinity MULTIFAN S2 is a compact, UL-certified 120mm USB blower fan designed to quietly extract heat from AV electronics and gaming consoles. Delivering 35 CFM airflow at a whisper-quiet 17 dBA, it features a 3-speed controller for customizable cooling, a low-profile rear exhaust ideal for tight spaces, and durable dual ball bearings rated for 67,000 hours. Powered conveniently via USB, it’s the go-to fan for millennial pros who demand silent, efficient, and sleek thermal management for their high-performance setups. ## Description Product Description MULTIFAN Series Designed to quietly cool Xboxs, Playstations, Rokus, Apple TVs, receivers, modems, routers, DVRs, computers, and other audio video electronics. Key Features Multi-Speed Controller Inline switch enables you to optimize fan speed for various applications. Can be powered through USB ports found behind AV electronics and consoles. Ultra-Quiet Fans Designed to maximize airflow CFM to noise dBA ratio. Dual-ball bearings rated at 67,000 hours allows the fans to be laid flat or stand upright. Quality Approved Contains UL recognized axial fans under #E503903 in 2018 by Underwriter Laboratories. Archived in UL Online Certifications Directory. Silicone Rubber Feet Absorbs noise and surface friction caused by fan vibrations. Unused pieces can be detached to reduce overall height for tight spaces. Review: At last, they're back in stock! Amazing fans! - I've been using one of these to cool my Denon AVR unit which the top of sits very close to the glass shelf above it. I have had this fan for a few years now and it is still going strong; I have it plugged into the USB port of my AV unit so it will run when the unit is on and it get's used A LOT, so that's testament to the longevity of this brand of fan. The fan is very quiet, much quieter than any other brands, and I have tried them all because AC Infinity fans have been out of stock in the UK for what seems like years! It has a 3 speed control switch so you can control the speed and noise. Be warned if you buy anything from AC Infinity, though: it will ruin every other brand for you because they are really that good. Review: Great fans that work with a great customer service. - To start of with I done my research after stumbling upon these cooling fans to cool down my AV system consisting of 250W mono block amps a dual processor which runs as hot as the amps as well a Sky box and PS 3&4 that run hot. I still had unanswered questions though so contacted AC Infinity's customer service to determine which type of fans suited my needs best. What can I say the customer service and helpful punctual reply's are second to none and wish all company's had this level of helpfulness & patience with all the questions I kept asking over several emails! Thanks Tommy for the invaluable advice anyway ; ) As for the product in hand that I purchased I went with the rear exhaust blowing S2 fan unit as my shelf gaps are quite narrow between each other so could not have the top exhausting S7 fan units the way my system is set up. Got to say the packaging is simple, yet smart with well thought out packing design and protection. Once open it comes with a clear and concise instructions manual that has been written by a human who knows his stuff and not a robot that has then translated from Chinese to English. The fan unit it self is well built and has a great feature of been able to daisy chain these fans together so less usb ports are used to power them. The fan unit itself is fairly quite unless on the highest speed you can detect the sound but is only noticeable when it is quite in the room, I say this but have to note I am running Four of these in tandem at the moment so the noise is a cumulative sound of all four fans running on highest speed. I have also purchased the Fan thermostat thermal & speed controller AI-ATC which has a temperature sensor probe attached and which measures your hottest area of a piece of kit and my amps were running at around 40-50 celsius in fairly warm ambient temperature has been quite a hot summer anyway and with the fans in place has cooled my amps and processor down to between 21 & 24 Celsius which makes the top of the units feel nice and cool. before the arrival of having these fans my amps and processor felt so hot to touch It felt like I could cook some bacon and eggs on top of them but with the S2 fans they are almost cold to the touch. Only note for these S2 Rear blowing models is unfortunately they are not fully compatible with the smart mode of the thermostat & speed controller like the S7 top blower fans are but does still work and can be adjusted manually on the controller. Over all the S2 fan does what it says on the tin or cardboard packaging in this case and cools my Hifi equipment right down to a sensible temperature that is not going to frazzle the electronics. Can't rate these enough from the fan itself with the build and design to the great customer advice I had from these guys. Looking forward to getting an Aircom T8 next and some more mutltifans soon from AC Infinity. ## Features - Quiet UL-certified blower designed to be placed on top of various electronics to draw out heat. - Features a multi-speed controller to set the fan’s speed to optimal noise and airflow levels. - Low profile design pushes air out the rear, ideal for applications with limited clearance. - USB plug can power the blower through USB ports found behind popular AV electronics and game consoles. - Blower Size: 4.7 x 4.7 x 1 in. | Airflow: 35 CFM | Noise: 17 dBA | Bearings: Dual Ball ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B012CL2V3I | | Air Flow Capacity | 35 Cubic Metres Per Minute | | Best Sellers Rank | 2,524 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 2 in USB Fans | | Brand | AC Infinity | | Compatible Devices | Electronic components, Desktop computers | | Cooling Method | Air | | Country Of Origin | China | | Customer Reviews | 4.6 4.6 out of 5 stars (35,208) | | Item Dimensions L x W x H | 25L x 120W x 120H millimetres | | Item Weight | 8 Ounces | | Manufacturer | AC Infinity | | Manufacturer Part Number | AI-MPB140A | | Material | Plastic Metal | | Max Rotational Speed | 2.5 RPM | | Model Number | AI-MPB140A | | Noise Level | 17 Decibels | | Number of Items | 1 | | Power Connector Type | 4-Pin | | UPC | 854759004495 | | Unit Count | 1.0 count | | Voltage | 5 Volts | | Wattage | 1.2 watts | ## Product Details - **Brand:** AC Infinity - **Compatible devices:** Electronic components, Desktop computers - **Cooling method:** Air - **Material:** Plastic Metal - **Maximum rotational speed:** 2.5 RPM - **Noise level:** 17 Decibels - **Power connector type:** 4-Pin - **Product dimensions:** 25L x 120W x 120H millimetres - **Voltage:** 5 Volts - **Wattage:** 1.2 watts ## Images ![MULTIFAN S2, Quiet 120mm USB Blower Fan | with Speed Control UL-Certified for Receiver DVR Xbox Modem AV Cabinet Cooling - Image 1](https://m.media-amazon.com/images/I/619RTyEe+IL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: My S2 centrifugal fan is too noisy even on the lowest speed, I can hear a constant note from it. How can I run it slower than low?** A: You might be able to rig up a second speed switch in series with the first, which will have a subtractive effect on the voltage. I have two S2 fans in series, each with a speed setting switch, and the first switch affects both fans, the second affects only the second fan, which did indeed run slower as it stopped on lowest setting and is running (slower) on the mid setting. If it runs slower though, it may stop and it won`t be cooling much at all. Maybe the fan is in need of some TLC? Have you tried applying some lubricant to the fan, such as WD40 with added silicon? I am running 3 of these fans, on mid speed, and can`t hear them from 10 feet away. If the fan is just annoying you when whatever it is cooling is not on, then try plugging it into a USB that switches off when the gear is off. My TV and amplifier do that, only the Sky box leaves the USB power on all the time. Getting a second fan might allow you to run them in series with one running slower, or may demonstrate that your current fan is unusually noisy, in which case you already have a replacement. **Q: Do you get 1 or 2 fans in the pack?** A: This is a single fan in the S2 pack (I agree there are a couple of misleading photos showing use of 2 of them). Looks like there's a pair of fans in the S7 pack if you want two connected together from one power source. I have 2 S2 fans daisy-chained together powered by one amplifier`s USB outlet to cool itself and a separate power amp, so they only come on when the amplifier is on. **Q: How long is the usb cable?** A: Looking at it its 2M **Q: Which way is airflow** A: The fan picture shows the top of the fan. The S2 sits flat on the top of what you want to cool and it sucks air up out of what it is sitting on and blows the air out the rectangular port on one side. ## Customer Reviews ### ⭐⭐⭐⭐⭐ At last, they're back in stock! Amazing fans! *by R***H on 16 October 2019* I've been using one of these to cool my Denon AVR unit which the top of sits very close to the glass shelf above it. I have had this fan for a few years now and it is still going strong; I have it plugged into the USB port of my AV unit so it will run when the unit is on and it get's used A LOT, so that's testament to the longevity of this brand of fan. The fan is very quiet, much quieter than any other brands, and I have tried them all because AC Infinity fans have been out of stock in the UK for what seems like years! It has a 3 speed control switch so you can control the speed and noise. Be warned if you buy anything from AC Infinity, though: it will ruin every other brand for you because they are really that good. ### ⭐⭐⭐⭐⭐ Great fans that work with a great customer service. *by F***R on 10 September 2016* To start of with I done my research after stumbling upon these cooling fans to cool down my AV system consisting of 250W mono block amps a dual processor which runs as hot as the amps as well a Sky box and PS 3&4 that run hot. I still had unanswered questions though so contacted AC Infinity's customer service to determine which type of fans suited my needs best. What can I say the customer service and helpful punctual reply's are second to none and wish all company's had this level of helpfulness & patience with all the questions I kept asking over several emails! Thanks Tommy for the invaluable advice anyway ; ) As for the product in hand that I purchased I went with the rear exhaust blowing S2 fan unit as my shelf gaps are quite narrow between each other so could not have the top exhausting S7 fan units the way my system is set up. Got to say the packaging is simple, yet smart with well thought out packing design and protection. Once open it comes with a clear and concise instructions manual that has been written by a human who knows his stuff and not a robot that has then translated from Chinese to English. The fan unit it self is well built and has a great feature of been able to daisy chain these fans together so less usb ports are used to power them. The fan unit itself is fairly quite unless on the highest speed you can detect the sound but is only noticeable when it is quite in the room, I say this but have to note I am running Four of these in tandem at the moment so the noise is a cumulative sound of all four fans running on highest speed. I have also purchased the Fan thermostat thermal & speed controller AI-ATC which has a temperature sensor probe attached and which measures your hottest area of a piece of kit and my amps were running at around 40-50 celsius in fairly warm ambient temperature has been quite a hot summer anyway and with the fans in place has cooled my amps and processor down to between 21 & 24 Celsius which makes the top of the units feel nice and cool. before the arrival of having these fans my amps and processor felt so hot to touch It felt like I could cook some bacon and eggs on top of them but with the S2 fans they are almost cold to the touch. Only note for these S2 Rear blowing models is unfortunately they are not fully compatible with the smart mode of the thermostat & speed controller like the S7 top blower fans are but does still work and can be adjusted manually on the controller. Over all the S2 fan does what it says on the tin or cardboard packaging in this case and cools my Hifi equipment right down to a sensible temperature that is not going to frazzle the electronics. Can't rate these enough from the fan itself with the build and design to the great customer advice I had from these guys. Looking forward to getting an Aircom T8 next and some more mutltifans soon from AC Infinity. ### ⭐⭐⭐⭐⭐ Perfect for old amps *by S***D on 3 December 2025* Perfect for my old technics A900 amp, keeping it cool, with no issues of overheating/protection mode kicking in. Works just aswell as their S10. Perfect for most Amps, ## Frequently Bought Together - AC Infinity MULTIFAN S2, Quiet 120mm USB Blower Fan with Speed Control, UL-Certified for Receiver DVR Xbox Modem AV Cabinet Cooling - AC Infinity Controller 1, Thermal Trigger for AIRPLATE, MULTIFAN, USB Fans and Devices. Computer, AV Cabinet, Home Theater Cooling. - AC Infinity Turbo Fan Power Adapter, for MULTIFAN Series USB Fans --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/60827217-multifan-s2-quiet-120mm-usb-blower-fan-with-speed-control](https://www.desertcart.hr/products/60827217-multifan-s2-quiet-120mm-usb-blower-fan-with-speed-control) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-24*