ES 80mm 800-6.000rpm Fan ( 80x80x25mm ) - Two Ball Bearing - PWM (JE8025B12V) 24829 The Alphacool ES fans have been specially developed for use in servers and workstations and, unlike usual, do not offer a 2 or 3-pin DC power connection, but a 4-pin PWM control. Specifications: L x W x H: 80 x 80 x 25 mm Speed: 1000-6000rpm Bearing: Two ball bearing Connection: 4-Pin PWM Cable length: 30 cm Operation voltage: 7 - 14V Start voltage min.: 7V Power consumption: 0,66 - 0,85A (7,92 - 10,2W) Static pressure: 14,29 H2O Max. air flow: 130,83 m³/h Noise: 50 dB(A) MTBF: 70.000h