FOR 2Pcs DC 12V 40MM (40x28MM) 4028 High-Speed Violent Booster Fan — Dual Ball Bearing, 4PIN PWM Plug

FOR 2Pcs DC 12V 40MM (40x28MM) 4028 high-speed "violent" booster fans. Each fan is rated DC 12V and measures 40x28MM. Built with dual ball bearing construction for greater longevity and stable operation. Includes a 4PIN plug with PWM support for adjustable speed and efficient cooling. Compact yet powerful solution for applications needing concentrated airflow.