GDSTIME 5 Volt 50x10mm 50mm 2 Inch Small Brushless Dc Cooling Fan &iexcl;&shy; Size: 50x50x10mm or 1.97x1.97x0.39 inches ; Weight: 19g/pcs ; Rated Power: DC 5V 0.18Amp ; Bearing type: Sleeve ; Speed: 4500RPM ; Air flow: 9.5CFM ; Noise:25dBA ; Connecter: Dupont Connector ; Cable Length: 20cm Or 7.8 inches This Pi fan not only support Raspberry Pi 2 and Pi 3, but compatible with other development board. This product is a separate terminal, can be accessed by 3.3V or 5V two options,3.3V noise will be relatively small. Efficient drop temp of your Pi by using our fan. Package include: 1 Piece fan include mounting screws & nuts