Enermax T.B.Vegas 120MM LED Twister Bearing Technology Cooling Fan UCTVS12P-BL, Blue PWM speed control to keep your system cool and silent all the time Smart APS (Adjustable Peak Speed) control providing 3 peak rpm options Patented Circular Type LED with 18 diodes and 6 switchable modes Patented Carved Halo Frame design for extra 20~30% airflow Twister Bearing technology for long lifetime and low noise PWM speed control to keep your system cool and silent all the time Smart APS (Adjustable Peak Speed) control providing 3 peak rpm options Patented Circular Type LED with 18 diodes and 6 switchable modes Patented Carved Halo Frame design for extra 20-30% airflow Twister Bearing technology for long lifetime and low noise Focus Blades centering the light to increase brightness Detachable fan blades for easy cleaning Isolator-mounts for shockproof and easy installation