AC Infinity
MULTIFAN S4, Quiet 140mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling
*Price sourced from Amazon.com. Last updated 2026-06-09. Price and availability subject to change.
Bottom line: The MULTIFAN S4, Quiet 140mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling is a niche pick — read recent reviews before buying in the cpu coolers & fans category, priced around $17.99. Read recent reviews carefully before committing.
SpecPicks Verdict
SpecPicks classifies AC Infinity MULTIFAN S4, Quiet 140mm USB Fan, UL-Certified for… as a niche pick — read recent reviews before buying in the cpu coolers & fans category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. AC Infinity's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Ultra-quiet UL-certified USB fan designed to cool various electronics and components.
- ✓ Backed by AC Infinity's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
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.
- Fan Size: 5.5 x 5.5 x 1 in. | Airflow: 57 CFM | Noise: 18 dBA | Bearings: Dual Ball
Full Specifications
| Brand | AC Infinity |
|---|---|
| Model | AI-MPF140A |
| Voltage | 5 Volts |
| Wattage | 1.5 watts |
| Fan Size | 5.5 x 5.5 x 1 in. | Airflow: 57 CFM | Noise: 18 dBA | Bearings: Dual Ball |
| Material | Rubber |
| Dimensions | 5.5 x 5.5 x 1 in |
| Unit Count | 1 Count |
| Noise Level | 18 Decibels |
| Part Number | FBA_AI-MPF140A |
| Connectivity | USB |
| Compatibility | Xbox |
| Material Type | Rubber |
| Cooling Method | Air |
Ready to buy?
AC Infinity MULTIFAN S4, Quiet 140mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-06-09. Price and availability subject to change.
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