Package included: 1 Piece fan include fan grill and mounting screws & nuts Dimensions: 92mm(L) x 92mm(W) x 25mm(H) / 3.62in(L) x 3.62in(W) x 0.98in(H) Rated Voltage: DC 12V; Rated Current: 0.16Amp; Rated Speed: 2500 RPM; Air flow: 54.8CFM; Noise: 31.2dBA Bearing Type: Dual Ball Bearings ; Life: working up to 50000h at 25 degrees. Connector: XH2.54-2Pin; Lead wire: UL Type (+): Red wire ; (-): Black wire. This is a two wire cooling fan.