DC Fan size: 3.55"x3.55"x0.98"(90 x 90 x 25 mm) Fan speed: 2500 RPM Bearing type: 1 Ball Noise level: 31.80 dBA Max air flow: 43.45 CFM Heatsink dimension: 3.94"(L)x3.86"(H)x3.7"(W) / 100 (L) x 98 (H) x 94(W) mm Heatsink material: Copper w/ copper base Weight: 0.84Lbs (381 g)/ Unit Rated voltage: 12 VDC Operation voltage: 9 - 13.5 VDC Thermal resistance: 0.23 C/W Power consumption: 3.6 W Rated current: 0.3 A