Fractal Design Silent Series R3 fans offer excellent value for money with good performance and assured reliability.All Fractal Design Silent Series R3 fans are equipped with long-life rifle bearings and an easy-to-hide sleek black cable.Available in a large variety of sizes ranging from compact 40mm fans to full-size 140mm fans the Silent Series R3 delivers suitable options for replacing loud or damaged fans in both computers and many other electronic devices.- Featuring rifle bearings providing improved life expectancy and lower noise compared to a standard sleeve bearing- Black stealth ribbon cable making it easy to hide the cable contributing to a clean build- Improved more balanced sturdy fan design delivering precision at a good price point- Low fan speeds optimized for quiet operation- Featuring Fractal Designs signature black and white color scheme- Offering sizes from 40mm up to 140mm for all your build needs