Wathai
40mm x 20mm 3pin Computer Case Fan 12V High Speed Replacement for DIY CPU Cooler, Routers, Switches, NAS,DVRs Cooling 2 Pack
*Price sourced from Amazon.com. Last updated 2026-05-25. Price and availability subject to change.
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 classifies Wathai 40mm x 20mm 3pin Computer Case Fan 12V High Speed Replacement… as a solid pick with broad community endorsement in the cpu coolers & fans category, based on 447 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Wathai's positioning sits comfortably above the category median. 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
- ✓ Solid 4.4★ customer rating
- ✓ Backed by Wathai'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
- 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 (DC) |
| Material | Plastic |
| Dimensions | 1.58x1.58x0.79 in |
| Unit Count | 1 Count |
| Noise Level | 25 Decibels |
| Part Number | 4020S12V2P2.5 |
| Compatibility | PS4, Xbox, Switch |
| Material Type | Plastic |
| Cooling Method | Air |
| Number of Items | 2 |
| Air Flow Capacity | 6.78 Cubic Feet Per Minute |
Ready to buy?
Wathai 40mm x 20mm 3pin Computer Case Fan 12V High Speed Replacement for DIY CPU Cooler, Routers, Switches, NAS,DVRs Cooling 2 Pack 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 2026-05-25. Price and availability subject to change.
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