be quiet! Silent Wings 4 140 PWM (BL096)

The be quiet! Silent Wings 4 140 PWM (BL096) is a 140 mm fan for cases, radiators, and CPU coolers, designed to balance low noise with stable aerodynamic performance without resorting to high-speed modifications. With dimensions of 140 × 140 × 25 mm, it operates at up to 1100 RPM, delivers an airflow of 51.3 CFM or 87.16 m³/h, and generates a static pressure of 0.92 mm H2O at a claimed noise level of 13.6 dB(A). The be quiet! Silent Wings 4 140 PWM (BL096) is ideally suited for quiet case builds where acoustics take priority over maximum pressure for dense radiators. The design features a 6-pole motor, fluid-dynamic bearing, minimal blade-to-frame clearance, and a funnel-shaped air exit that enhances efficiency without increasing noise. For installation, the be quiet! Silent Wings 4 140 PWM (BL096) supports both anti-vibration push-pin mounting and standard screw fastening, making it adaptable to various roles within the system. The cable measures 500 mm in length and uses a standard 4-pin PWM connector for straightforward speed control via the motherboard. The be quiet! Silent Wings 4 140 PWM (BL096) is ideal for quiet-focused builds positioned for rear or top exhaust, as well as in large 140 mm mounting locations where smooth operation, minimal vibration, and moderate RPM without decorative RGB lighting are essential.