Xigmatek Computer Case Cooling Fan XLF-F1255 Higher airflow, static pressure and torque. Reduce noise (&lt;20 dBA) and power consumption. 4 pcs White LEDs and transparent colorific blade and frame. 4 Pin with PWM Optimized blade design to create cooling performance. Transparent colorific blade and frame with White-LEDs make your case a spotlight. Higher airflow, static pressure and torque. Reduce noise and power consumption. 4 pcs White LEDs and transparent colorific blade and frame