Description
12025 Brushless DC Cooling Fan — 4.75 Inch (120×120×25mm), 12V
Deliver powerful, reliable airflow to your system with the 12025 Brushless 12V DC Exhaust Cooling Fan. Built to the standard 120mm × 120mm × 25mm (4.75 inch) form factor, this fan is engineered for consistent forced-air cooling across PC builds, server enclosures, industrial control panels, and ventilation systems — anywhere that demands dependable thermal management.
The brushless motor eliminates the mechanical wear associated with brushed designs, delivering a rated service life exceeding 30,000 hours. Operating at 12V DC — the standard voltage on ATX PSU rails, industrial power supplies, and 12V adapters — this fan is a straightforward, drop-in cooling upgrade with no additional circuitry required.
Key Features
- Brushless motor — extended lifespan, reduced noise, zero brush maintenance
- Standard 120mm mounting — fits all 120mm fan mounts with M4 corner screws
- 12V DC input — compatible with ATX PSUs, 12V rails, and industrial power supplies
- 25mm slim profile — maximises airflow within tight chassis clearances
- Axial exhaust design — optimised for exhaust and intake applications
- Low vibration frame — quiet operation suitable for always-on installations
Specifications
| Specification | Details |
|---|---|
| Fan model | 12025 |
| Dimensions | 120mm × 120mm × 25mm |
| Imperial size | 4.75 inch |
| Operating voltage | 12V DC |
| Motor type | Brushless |
| Airflow type | Axial / exhaust forced air |
| Mounting type | Panel mount — 4× corner screw holes (M4) |
| Connector | 2-pin / 3-pin (model dependent) |
| Rated lifespan | 30,000+ hours MTBF |
Compatible With
- ATX desktop PC cases — front intake, rear exhaust, or top exhaust positions
- Server racks and 1U / 2U rackmount enclosures
- Industrial control panels and electrical cabinets
- Networking equipment — switches, NAS boxes, routers
- Laser engravers, 3D printers, and CNC control bays
- DIY home lab builds and fanless-to-active cooling conversions
- CCTV DVR / NVR systems and set-top boxes
Installation Guide
- Identify airflow direction — the label side faces the air intake; the frame/strut side is the exhaust.
- Connect the red wire to 12V positive and the black wire to GND. If using a 3-pin connector, the yellow wire carries tachometer signal for speed monitoring.
- For PC builds: plug the connector into a chassis fan header on your motherboard or directly into a Molex adapter on the PSU.
- Secure with four M4 screws through the corner mounting holes into your panel, bracket, or chassis.
- Ensure a minimum 15mm clearance on both the intake and exhaust sides for unrestricted airflow.
- Keep fan blades and grilles free of dust build-up — clean with compressed air every 3–6 months for optimal performance.
The 12025 Brushless 12V DC Fan ships ready to install — standard 120mm mounting, no adapters needed. Compatible with virtually every 120mm fan slot across consumer and industrial enclosures.
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