PC Fan SilentiumPC Zephyr 50:The SilentiumPC Zephyr 50 typifies a highly powerful computer fan that has been designed specifically to enhance the air cooling in your computer. This computer fan will please those who do not want to be disturbed by a coloured backlight in the night hours, since this fan has no backlight. Another advantage is also the the significantly lower price. The 50 mm fan size makes it easy to fit into all popular PC case formats. A key parameter is also the operating voltage, which for this model makes 12 V. Youll find one fan in this package. SilentiumPC Zephyr 50 Computer Fan Key Features The airflow of 7 CFM is sufficient for cooling down your computer Modern and striking design This powerful fan contains special bearings for a longer battery life Operating voltage: 12 V The SilentiumPC PC Fan Is Perfect for Any Computer Case In order to safely connect the SilentiumPC Zephyr 50, you must have a 3pin connector.