Specification size: 120(L)x120(W)x32(H)mm connector: 2-Wire Lead Rated current: 0.5±0.18 Amp Rated voltage:dc 12v Fan speed: 2500±10%rpm Airflow:30.8CFM Bearing: Dual Ball bearing Noise:45±10%dBA Weight:250g/pcs cable length: 18cm Life: 50000 hours Small and powerful,,Perfect for DIY inflatable ,to cool amplifier ,Car Parts, Playtations, Rokus, TVs, receivers, mondems, routers, DVRs, Computers and other audio video electronics.