Futures： Size:80x80x25mm Rated Voltage: 5V Rated Current: 0.25A Connecter: USB Speed: 2500RPM Air flow:39.7CFM Noise:26dBA Bearing type: Sleeve Bearing Cable Length: 1m Life: 35000 hoursPackage：4PCS 8025 USB Fan 5V Brushless fan
❃❃High quality 80mm USB Fan, speed 2600 + -10% RPM
❃❃Rated voltage: DC 5V, Rated current: 0.27A
❃❃Wind volume: 30CFM；Noise: 26dBA
❃❃Connector: USB Plug; Bearing Type: Hydraulic Bearing ; Life: working up to 40000h at 25 degrees.
❃❃Package include: 4pcs 80mm router cooler fan
❃❃Dimension: 80mm(L) x 80mm(W) x 25mm(H) / 3.15 x 3.15 x 0.98 in. per fan