Square AC axial fan, air flow 70 cfm, voltage rating 115 Volts, width 4 11/16 inches, speed 2000 RPM, current rating 0.13 amp, bearing sleeve, power rating 11 Watts, speech interference level 36 db, mounting hole size 4 1/8 inches, depth 1 1/2 inches, height 4 11/16 inches