Model No.:B09 Dimension: 320*230*13.8mm weight: 300g material: Acryl fan bearing: sleeve bearing fan quantity: 2pcs fan dimension: 70*70*15mm voltage: dc 5v current: 0.2A power: 1.3W speed: 1900r.p.m life: 30,000 hours air flow: 50CFM noise: 21dB power model: USB package size: 61.5*50*35.5cm quantity/box: 18pcs G.W.: 23kg N.W.: 22kg