XION AXP Alphawing Series 140mm H.S.B Bearing Retail, AXP-GF140-LEDR (Black Transparency with Red LED) Anti-acoustic low Noise level designed. Long life expectancy of 60,000 hours in 40 degree C. Driving Powerful air flow up to 51.02 CFM, operating at 1200 RPM. Best Wire Management and 3 to 4 pins Adaptor included. LED colors provided brilliant illumination while operating.