SoundOriginal 2-Pack Brushless USB DC Cooling Fan 5V 0.15A 40x40x10mm Speed 6800 RPM USB Brushless Cooling Fan for Small Appliances Series Repair Replacement (Black USB x2)

2pcs Brushless cooling fan 5vdc 0.15A 40mm x 40mm x10mm Speed 6800 RPM Fans for computer case 40mm 3d Printer fan used in humidifier, aromatherapy and other small appliances series; small heat radiating communication equipment; military equipment; intelligent industrial control equipment plate cooling heat, high precision medical equipment cooling; pc cpu server cooling dissipation; electronic cooling fans and so on---Repair Replacement (2Pack) B Bearing Type: Dual Ball Bearing, Speed: 6800 RPM, Dual-ball bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright. Connecter: USB; compact motor design, the NF-A4x10's motor hub is smaller than with conventional 4cm fans. This allows for more blade surface area and thus contributes to the NF-A4x10's superior airflow and pressure performance. D C Brushless Cooling Fan, Rated Voltage: DC 5V, Current: 0.15A; D imensions: 40x40x10mm (1.6 x 1.6 x 0.36inch). per fan | Total Airflow: 7.12 CFM | Total Noise: 26.26 dBA | Bearings: Dual Ball