Package include: 2 Pieces fan include mounting screws & nuts Dimensions: 30mm (L) x 30mm (W) x 10mm (H) / 1.18'' (L) x 1.18'' (W) x 0.39'' (H) Rated Voltage: DC 12V; Rated Current: 0.06 Amp; Rated Speed: 10000 RPM; Air flow: 3.95CFM; Noise: 25.68dBA Bearing Type: Sleeve Bearing ; Life: working up to 35000h at 25 degrees. Connector: XH2.54-2Pin; Lead wire: UL Type (+): Red wire ; (-): Black wire. This is a two wire cooling fan.