AC Infinity
AC Infinity MULTIFAN S1
Bottom line: The AC Infinity MULTIFAN S1 ($14.99 on Amazon as of 2026-10-20 22:15 UTC): 17 dBA at rated speed stays quieter than most consoles it cools; main trade-off: 26 CFM is modest for large or fully sealed cabinets.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 17 dBA at rated speed stays quieter than most consoles it cools
- ✓ 26 CFM from an 80mm frame clears a closed AV cabinet
- ✓ USB powered off a receiver or console port, no wall outlet
- ✓ Multi-speed controller trades airflow for silence on demand
- ✓ Dual-ball bearings rated 67,000 hours, mounts flat or upright
Cons
- ✗ 26 CFM is modest for large or fully sealed cabinets
- ✗ Single 80mm fan may need pairing for multi-shelf racks
- ✗ USB power depends on the host port staying live when idle
- ✗ Speed controller is manual, with no thermal auto-adjust
Manufacturer description
The AC Infinity MULTIFAN S1 is an 80mm USB cooling fan built for the cramped, unventilated shelves where AV receivers, DVRs, and game consoles slowly cook themselves. It moves 26 CFM at 17 dBA, so it clears trapped heat out of a closed cabinet without adding an audible whir to a quiet room. Power comes from a standard USB plug, which means you can run it off the service port on the back of a receiver, PlayStation, Xbox, or TV instead of hunting for another wall outlet. A multi-speed controller lets you dial airflow up during a long session or down to near-silence for movie nights. The…
SpecPicks Verdict
SpecPicks scored AC Infinity MULTIFAN S1 using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. AC Infinity's retro cpu coolers & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for retro cpu coolers & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
How loud is the MULTIFAN S1?
It is rated at 17 dBA, quiet enough to sit inside a media cabinet without competing with dialogue. The included multi-speed controller lets you drop it lower if you want it closer to silent.
Can I power it from my PlayStation or Xbox?
Yes. The fan uses a standard USB plug and is designed to draw power from USB ports found behind AV electronics and game consoles, so no separate power adapter is required.
How much air does it actually move?
26 CFM at full speed from a 3.2 x 3.2 x 1 inch, 80mm frame. That is sized for a single enclosed shelf or cabinet compartment rather than a full open equipment rack.
Will it lie flat on top of a console?
Yes. The dual-ball bearing design is rated to run either laid flat or standing upright, which is why it works both on top of a console and behind a component stack.
How long will the fan last?
AC Infinity rates the dual-ball bearings at 67,000 hours of service life. For warranty terms and current coverage, check the product listing.
Key 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.
- Dimensions: 3.2 x 3.2 x 1 in. | Airflow: 26 CFM | Noise: 17 dBA | Bearings: Dual Ball
Full Specifications
| Brand | AC Infinity |
|---|---|
| Voltage | 7.2 Volts |
| Wattage | 1.1 watts |
| Material | Rubber |
| Dimensions | 3.2 x 3.2 x 1 in. | Airflow: 26 CFM | Noise: 17 dBA | Bearings: Dual Ball |
| Unit Count | 1.0 Count |
| Noise Level | 17 Decibels |
| Connectivity | USB |
| Compatibility | Xbox |
| Material Type | Rubber |
| Cooling Method | Air |
| Air Flow Capacity | 26 Cubic Feet Per Minute |
| Compatible Devices | Amplifier |
| Power Connector Type | USB |
| Maximum Rotational Speed | 2000 RPM |
| Item Dimensions L x W x H | 3.2"L x 1"W x 3.2"H |
| Full listing title | AC Infinity MULTIFAN S1, Quiet 80mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling |
Ready to buy?
AC Infinity MULTIFAN S1, Quiet 80mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
Related Retro CPU Coolers & Fans
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Best 1440p Gaming GPUs in 2026
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- How to Build a Windows 98 Retro PC in 2026
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
More reviews from the SpecPicks archive
Browse all reviews →- Is the RTX 3060 12GB Still Worth It for 1080p Gaming in 2026?
- SteamOS Boots on Intel Hardware in Community Hack
- Intel Arc Pro B60 AI Performance: 24GB VRAM Explained
- Best Budget AMD Gaming PC Upgrades in 2026: 5 Parts That Move the Needle
- Best GPU for 1080p 240Hz Esports: RTX 3060 12GB Build (2026)
- LEGO Batman: Legacy of the Dark Knight Steam Deck FPS
- Best Controller for Raspberry Pi Retro Gaming and Emulation in 2026
- Forza Horizon 6 Cuts Load Times to 4 Seconds With Advanced Shader Delivery
- Noctua NH-U12S vs DeepCool AK620 for the Ryzen 7 5800X
- IDE-to-USB and CompactFlash Adapters for Retro PCs: FIDECO vs Unitek vs Vantec
- Best Gaming Controller for PC and Console in 2026: 5 Picks Compared
- Qwen 3.6 35B-A3B vs Qwen 3.6 27B Dense: Which Local LLM Wins on a Single 24GB GPU?
- Old Massive Chieftec Full Tower: Homelab Gem or Junk?
- How to Image and Preserve a Vintage IDE Hard Drive in 2026 (CompactFlash + USB Adapter Workflow)
- Gemma 4 31B on a 12GB RTX 3060: Quantization, VRAM, and Real tok/s
- Raspberry Pi OS Moves to Linux 6.18 LTS — Real Performance Gains
- Build a Raspberry Pi 4 Pi-hole + Unbound Ad-Blocker in 2026
- Raspberry Pi 5 16GB Ships — Is the Pi 4 8GB Still Worth It?
- Raspberry Pi 5 8GB Review (2026): Still the SBC to Beat
- NVIDIA Cosmos 3 vs Ideogram 4.0: Which Open Image Model to Run on 12GB
- Can a Raspberry Pi 4 8GB Run Local LLMs in 2026? Ollama tok/s + SSD-Boot Setup
- Build a Sub-$60 Air Quality Monitor on a Raspberry Pi 4 (CO₂, PM2.5, VOC)
- Ollama vs llama.cpp on a 12GB GPU: Which Is Faster for Single-User Chat?
- Silent Cooling for a Retro Sleeper PC: Fitting a Modern Quiet Fan to a Vintage Case
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090