Sofasco International is a designer, manufacturer and distributor of high quality, cost effective , RoHS, certified DC axial (muffin) fans (volts, 5V, 12V, 24V, 48V) for OEM, industrial and commercial applications. We maintain facilities in the USA and China. We have a wide range of performance characteristics, materials, and functionalities ranging in size from 25mm to 172mm. The product line includes high performance matched with ultra quiet, high, medium and low speed DC brushless fans, including small miniature electric and electronic computer cooling fans, micro exhaust, dustproof and waterproof (IP 54 & IP 55), centrifugal fans as well as serial fans for increased airflow in high static pressure enclosures. Optional 3rd wire signal rotation detection, 3rd wire signal frequency generator and thermistor temperature control is available upon request. Additionally, Sofasco carries a complete crossover line of computer replacement fans.