Upgrade your chassis’ cooling performance with the bgears B-PWM 120mm PWM case fan. Its two-ball-bearing design, 15 aerodynamic design blades, and PWM fan speed control ensure high speed, great cooling, and silent performance. The included mini 4-pin connector and 3-to-4-pin Molex adapter allow you to plug into either your motherboard or power supply. The translucent blades with four blue LEDs deliver a stylish appearance with an enhanced lighting effect.