EFB0412LD 4020 40mm Axial Silent Cooling Fan, DC12V 0.08A Dual Ball Bearing, Optional 1PC or 2PCS, Replacement Fan for Network Switch Case, Power Supply and Small Electronic Equipment Heat Dissipation

EFB0412LD 4020 axial cooling fan is a compact silent replacement fan, sized 40×40×20mm, DC12V, rated current 0.08A and built with dual ball bearings. This listing offers optional quantity: 1 piece or 2 pieces for your selection. The small 4cm fan fits limited internal space of network switch cases, power supplies and other miniature electronic hardware. It continuously carries away heat generated by circuit boards and power components to avoid overheating, thermal protection triggers and unexpected device downtime. Dual ball bearing construction enables long continuous runtime and strong anti-vibration performance. The refined blade design balances airflow output and noise level, maintaining quiet operation during equipment running. The standard 40mm mounting holes match original fan specifications, no drilling or modification required for installation. Each fan undergoes strict factory testing covering rotation speed, noise and electrical continuity before packing. It is an ideal drop-in replacement for worn, stuck or noisy original fans inside power supplies and network switch devices.

1. Model: EFB0412LD
2. Available Quantity: 1 PC / 2 PCS Optional
3. Dimension: 40×40×20mm (40mm / 4cm)
4. Rated Voltage: DC 12V
5. Rated Current: 0.08A
6. Bearing Type: Dual Ball Bearing
7. Fan Type: Axial Silent Cooling Fan
8. Application: Network Switch Case, Power Supply, Small Electronic Equipment Heat Dissipation