Wathai
Wathai 40mm x 20mm 3pin Computer Case Fan 12V DC Brushless Cooling Motor
Bottom line: The Wathai 40mm x 20mm 3pin Computer Case Fan 12V DC Brushless Cooling: 6000 RPM moves air fast for a 40x20mm fan; main trade-off: 6000 RPM runs audibly at 25 dBA for its size.
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Pros & Cons
Pros
- ✓ 6000 RPM moves air fast for a 40x20mm fan
- ✓ 3-pin connector fits router, switch, NAS and DVR fan headers
- ✓ Rated 35,000-hour lifespan on the sleeve bearing
- ✓ 6.78 CFM output suits 1U servers and console enclosures
Cons
- ✗ 6000 RPM runs audibly at 25 dBA for its size
- ✗ Sleeve bearing lasts longest mounted vertically, not flat
- ✗ 6.78 CFM is modest for high-heat CPU cooling
- ✗ 3-pin only, so no PWM speed control
Manufacturer description
Package include: 1 Piece fan and mounting screws & nutsSize:40x40x20mmRated Voltage:12VRated Current: 0.12AConnecter: 3PinPower: 0.6WSpeed: 6000RPMAir flow: 6.78CFMNoise:25dBABearing type: Sleeve BearingCable Length: 20cm Or 8 inchesLife: 35000 hoursWeight:22g/pcs or 0.78oz
SpecPicks Verdict
SpecPicks scored Wathai 40mm x 20mm 3pin Computer Case Fan 12V DC Brushless Cooling… using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. Wathai'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
- 40mm Fan: 2 Piece fan for equipment cooling, including Xbox consoles and devices in entertainment centers or enclosed spaces. For enhancing ventilation and controlling airflow in computer cases
- DC Brushless Fan 12V: 40x40x20 12v fan employed for cooling computer components, such as 3D prints, orange pi 5 plus case, PS4 Pros and laptops, and serving as exhaust fans for different setups
- 12V Fan: 40x20mm size ideal for 1U servers or replacing fans in network and storage equipment (routers, switches, NAS, NVR, etc.) or other devices such as DVRs
- High Performance: The fan cooling various components, including the CPU, 3D printer's hot end, and the case fan in a 1U rackmount chassis. It also ventilation for the Unifi USG Pro 4 security gateway, Ubiquiti switch, CR-10S, PSU
- Tiny Fan: 40mm x 40mm x 20mm / 1.58x1.58x0.79 in. per fan; Rated Voltage:12V 0.12A; Speed: 6000RPM; Air flow: 6.78CFM; Noise:25dBA; Connecter: 3Pin; Cable Length: 20cm Or 8 inche; Bearing type: Sleeve Bearing ; Life: 35000 hours
Full Specifications
| Brand | Wathai |
|---|---|
| Model | 4020S12V2P2.5 |
| 12V Fan | 40x20mm size ideal for 1U servers or replacing fans in network and storage equipment (routers, switches, NAS, NVR, etc.) or other devices such as DVRs |
| Voltage | 12 volts_of_direct_current |
| Material | Plastic |
| Dimensions | 1.58x1.58x0.79 in |
| Unit Count | 1 Count |
| Noise Level | 25 db |
| Part Number | 4020S12V2P2.5 |
| Compatibility | PS4, Xbox, Switch |
| Material Type | Plastic |
| Cooling Method | Air |
| Number of Items | 2 |
| Air Flow Capacity | 6.78 cfm |
| Compatible Devices | Desktop |
| Power Connector Type | 3-Pin |
| Maximum Rotational Speed | 6000 rpm |
| Item Dimensions L x W x H | 1.57"L x 1.58"W x 0.8"H |
Ready to buy?
Wathai 40mm x 20mm 3pin Computer Case Fan 12V DC Brushless Cooling Motor 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.
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