40mm Cooling Fan Mini 5V DC Brushless Fan for Raspberry Pi Arduino Electronics DIY Projects

Specifications  

• 40mm cooling fan
• Fan Size: 40 x 40 x 7 mm  
• Rated Voltage: 5V DC  
• Rated Current: 0.08–0.12A  
• Rated Speed: 5000–6000 RPM  
• Air Flow: 5.0–6.5 CFM  
• Static Pressure: 2.5–3.5 mmH₂O  
• Noise Level: 20–24 dBA  
• Bearing Type: Sleeve Bearing  
• Connector: 2-wire (Red: Positive, Black: Negative)  
• Wire Length: Approximately 150–200mm  
• Frame Material: Thermoplastic PBT  
• Impeller: 7-blade plastic  
• Mounting Holes: 32mm spacing (diagonal)  
• Operating Temperature: -10°C to +70°C  
• Expected Lifespan: 30,000–40,000 hours 

Features  

• Ultra-thin 7mm profile – ideal for low-clearance installations  
• 5V DC operation – easily powered via USB, power bank or Arduino/RPi  
• Quiet brushless motor with low noise operation  
• Efficient 7-blade design for good airflow in limited space  
• Four corner mounting holes for secure installation  
• Simple 2-wire connection (red +, black -)  
• Durable sleeve bearing for long life  
• Lightweight and energy-efficient 
• Stay cool in tight spaces with the 40mm Cooling Fan 5V DC (40x40x7mm) from Dunia BD. This ultra-slim brushless DC fan is only 7mm thick, making it perfect for applications where standard 10mm or thicker fans simply won’t fit – such as low-profile Raspberry Pi cases, compact routers, LED lighting enclosures, small amplifiers, portable devices, and custom DIY electronics projects.  
• Running on just 5V, it can be powered directly from a USB port, power bank, Arduino 5V pin, or any standard 5V supply – no additional voltage conversion needed. The efficient 7-blade impeller delivers respectable airflow while keeping noise extremely low, ensuring silent operation in home or office environments.  
• Easy to install with four corner mounting holes and simple 2-wire connection, this fan offers reliable, long-lasting cooling with its durable sleeve bearing construction. Order your ultra-thin 40x40x7mm 5V cooling fan today from Dunia BD and enjoy fast, hassle-free delivery anywhere in Bangladesh.  

What is the price of 40mm Cooling Fan Mini 5V DC Brushless Fan for Raspberry Pi Arduino Electronics DIY Projects in Bangladesh?

The latest price of 40mm 5V DC Brushless Cooling Fan Mini in Bangladesh starts from Price: ৳80.00 taka for one piece fan. You can buy this product at a better and cheaper price from our website and also you can visit our warehouse between work hours 10am to 8pm.

Buy 40mm Cooling Fan Mini 5V DC Brushless Fan for Raspberry Pi Arduino Electronics DIY Projects in Bangladesh from online at Dunia.com.bd.

In Bangladesh, you can get original 40mm 5V DC Brushless Cooling Fan Mini From Dunia.com.bd . We have few collection of latest Ventilation Fan to purchase. Order Cooling & Ventilation Equipment Online at our website Or Visit our warehouse to get your product at lowest price.

FAQ 

1. What voltage does this fan need?
   It runs on 5V DC only.
2. Can I power it from a USB port?
   Yes, directly from any USB port, power bank, or 5V adapter.
3. How quiet is the fan?
   Very quiet – typically 20–24 dBA.
4. What are the mounting hole dimensions?
   Standard 40mm fan mounting – 32mm center-to-center spacing.
5. Is it suitable for Raspberry Pi cooling?
   Perfect for low-profile Pi cases and 5V GPIO powering.
6. What airflow does it provide?
   Approximately 5.0–6.5 CFM, excellent for its slim size.
7. Does it come with a connector or bare wires?
   Bare stripped wires for easy custom connection.
8. What type of bearing does it use?
   Sleeve bearing for smooth and reliable performance.
9. Can it run 24/7?
   Yes, with an expected lifespan of 30,000–40,000 hours.
10. Where can I buy this fan in Bangladesh?
    Available at Dunia BD with quick online ordering and nationwide delivery.