Silverstone FW181 Computer case Fan

180 mm, 500 - 1200 rpm, 4 pin PWM, 12V DC, 149.6g The FW181 is a high quality 180mm with a slim profile of 18mm thickness designed for use in limited space. It has fan blades designed to provide excellent balance of airflow and air pressure for their size. Powered via PWM 4pin connector, the FW181’s speed can be adjusted by supported motherboard or fan controllers to be used for silent running builds or for cooling a high performance machine.