A compact USB-powered cooling fan designed to protect electronics and confined spaces with adjustable airflow and a sturdy metal grill. Those who need quiet, targeted cooling for routers, consoles or small PC cases will welcome low noise and three speed options. Is the ELUTENG Mini USB Fan the best choice for DIY setups and crowded media cabinets?
⚡ At a Glance
- • Airflow: Air volume 3.5 / 3.88 / 4.4 CFM across low/medium/high, rotating speed 4000–5300 RPM
- • Best for: Targeted cooling for PC cases, game consoles, routers and AV cabinets
- • Not ideal for: Large-room ventilation or replacing full-sized case cooling setups
Compact 40mm USB-powered fan with three adjustable speeds and metal grills. Suited to targeted cooling of electronics and tight enclosures.
Adjustable Cooling on Demand – With a 3-level speed switch
A mechanical L/M/H switch selects voltages of 3.5V, 4.2V and 5V, producing air volumes of 3.5, 3.88 and 4.4 CFM and speeds of 4000, 4600 and 5300 RPM.
Choose a lower speed for quiet background cooling or high speed for maximum airflow in hotspots such as router vents and compact PC cases.
Quiet Operation for Shared Spaces – Thanks to low-noise design
Noise measurements range from 25.6 dB at the weakest setting up to 32.5 dB at the strongest setting, aided by quality bearings that reduce friction and vibration.
Noise remains unobtrusive during media playback or in a home office, so targeted cooling will not distract from work or shows.
Durable Protection and Safe Mounting – With metal grill protector and reinforced cable
Metal grills on both sides prevent blade contact while a corner cable protective glue reduces wear; the grill uses a black spray finish intended to resist rust and fading.
Safe for DIY builds and accessible areas, with reduced risk of blade contact and longer cable life under continuous use.
✨ The 4 Key Reasons for ELUTENG Mini USB Fan
- Three speed settings – Quickly switch between quiet trickle and stronger targeted airflow
- 5V USB power – Plug into most USB ports for flexible placement
- Dual metal grills – Prevent accidental contact while providing durable, rust-resistant protection
- 100cm cable & quality bearings – Longer reach and smoother running for continuous use
📋 Technical Details at a Glance
- Category: Mini USB cooling fan
- Size: 40mm
- Voltage: 3.5 / 4.2 / 5V
- Speeds: Low / Medium / High (3-level switch)
- Air Volume: 3.5 / 3.88 / 4.4 CFM (L/M/H)
❓ Frequently Asked Questions
Q: Which devices can it cool?
A: Suitable for PC, laptop, TV box, receiver, AV cabinet, PS4, projector, router and PC case according to the product description.
Q: Can it be powered from a USB hub?
A: The manufacturer advises against connecting to a USB hub; use a direct USB power source instead.
Q: How loud is the fan?
A: Noise is specified between 25.6 dB at the lowest setting and 32.5 dB at the highest, and user feedback describes quiet operation.
🏆 Our Verdict
Ideal for DIY builders and anyone needing quiet, targeted cooling for small electronics and cramped enclosures. Compact 40mm size, three speeds, metal grills and USB power make adding focused airflow simple and safe. While the initial outlay is modest, the durable grill and quality bearings offer excellent long-term value for routine cooling needs.
