Publisher Delta Electronics Industrial Co., Ltd. (Delta Electronics Public Co., Ltd)Model EFB0405VHDSize 40 * 40 * 20mmBearing Superflo ( double ball bearing )Standard voltage DC5VNoise 25.5dBACurrent 0.45A7200 ± 10% RPM speedWind 7.43CFMMaintaining optimal time 75,000 hours of continuous operation3-pin fan connector interfaceFeatures double ball bearing maintenance , long service life , with plenty of cooling air volume and pressure