WDERAIR

Small 4010 High Speed DC 12V Brushless 40mm x 10mm Dual Ball Bearing Mini 6500RPM Cooling Fan for Electronic Products 3D Printer Cooler 2-Pack

Name: Small 4010 High Speed DC 12V Brushless 40mm x 10mm Dual Ball Bearing Mini 6500RPM Cooling Fan for Electronic Products 3D Printer Cooler 2-Pack
Brand: WDERAIR
SKU: B0D4M5WSMG

Bottom line: The Small 4010 High Speed DC 12V Brushless 40mm x 10mm Dual Ball Bearing: Dual ball bearing rated for 67,000 hours, mountable vertically or horizontally; main trade-off: 31.7 dBA at 6500 RPM is audible in a quiet room or open bench setup.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-06

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Dual ball bearing rated for 67,000 hours, mountable vertically or horizontally
✓ 5.62 CFM airflow at 0.15 in H2O static pressure from a 40x40x10mm frame
✓ Draws only 0.08A at 12V (0.5W), light load on retro PSUs and controller rails
✓ 1m (39 inch) lead gives routing slack in cramped cases and enclosures

Cons

✗ 31.7 dBA at 6500 RPM is audible in a quiet room or open bench setup
✗ XH2.54 2-pin connector needs an adapter for 3-pin or 4-pin motherboard headers
✗ 2-pin wiring means no tach signal and no PWM speed control
✗ Fixed 6500 RPM only, so noise cannot be dialed back without an external controller

SpecPicks Verdict

SpecPicks scored Small 4010 High Speed DC 12V Brushless 40mm x 10mm Dual Ball Bearing… using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. WDERAIR'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.

Key Features

【DC Brushless Cooler】40mm Suitable for LED equipment、humidifiers、3D printers (Ender Series)、high-precision instruments、purifiers、UPS power supply、communication equipment or replacement of small fans of electronic products. Cooling and dust removal for equipment, strengthening ventilation
【4010 Fan 12V】40 X 40 X 10 mm ( 1.57x1.57x 0.39 inch) | Rated Voltage: 12V | Current : 0.08A | Power: 0.5W | Speed : 6500PRM | Air pressure: 0.15 In H2O | Airflow : 5.62CFM | noise: 31.7dBA | Connector: XH2.54-2Pin
【Mini Cooling Fan】 Cords are 1m or 39 inches long, providing more flexibility and convenience to change lengths as needed
【Dual Ball Bearing】Has a rated life of 67,000 hours and allows the fan to be mounted vertically or horizontally. The impedance-protected motor and pure copper coils provide high resistance to heat, extending the life of the unit
【Service & Support】Please feel free to inquire if you have any problems using the product or need technical support.We will respond as soon as possible.

Full Specifications

Brand	WDERAIR
Model	4010B12V2P-2pack
Voltage	12 Volts (DC)
Material	Plastic
Dimensions	40 x 40 x 10 mm
Unit Count	2.0 Count
Noise Level	27 Decibels
Part Number	4010B12V2P-2pack
Material Type	Plastic
Cooling Method	Air
Number of Items	2
Air Flow Capacity	7.13 Cubic Feet Per Minute
Compatible Devices	Printer
Power Connector Type	2-Pin
Maximum Rotational Speed	6500 RPM
Item Dimensions L x W x H	1.57"L x 0.39"W x 1.57"H

Ready to buy?

Small 4010 High Speed DC 12V Brushless 40mm x 10mm Dual Ball Bearing Mini 6500RPM Cooling Fan for Electronic Products 3D Printer Cooler 2-Pack is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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