Rateds voltages: 5VDC, current: 0.18A; air volumes: 6.4CFM, speed: 5800PRM; Noise: 28DBA. Bearing type: Oil containing bearing; Connection cable: USB; Length: 93cm; Fan size: 40x40x10mm (length x width x height). Features: high airflows, low noise. Long life, strong airflows, and stable performances. Function: for projects that require cooling or ventilation. This cooling fan for small spaces, can keep equipment cool and extend its service. Application: for heat dissipation of printers, players, computer cases, switches, and small communication devices; Cooling of PC CPU servers, replacement of fans for electronic products.