Meet the Noctua NF A4x10 5V PWM, a compact 4 cm PC case fan designed for small form factor builds that demand precise cooling and reliable performance. With PWM speed control and Noctua's distinctive brown color, it combines efficient airflow with a refined, space-saving design.

Key Features & Design

• Size: 4 cm (40 mm) square frame ideal for tight spaces
• Voltage & Control: 5V PWM for precise speed adjustment
• Color: Brown with the signature Noctua finish
• Application: Perfect for small form factor PCs, compact heatsinks, and restricted bays
• Build & Reliability: Crafted for durable, long-term use

Performance / Benefits

The PWM-enabled design lets you tailor rotation speeds for optimal cooling and efficiency. The 4 cm footprint provides targeted airflow where larger fans cannot fit, helping to manage heat in tight spaces while supporting stable, reliable operation. Noctua’s engineering quality ensures dependable performance over time.