Classic Black ·D7020xxxx Fan dimension: 70×70×20mm     Model Voltage Bearing Type Air Flow Speed Pressure Current Power Noise (VDC) (CFM) (RPM) (mmH2O) (mA) (W) (dBA)  D7020L12D 12 2 Ball 22.47 2,500 2.01 110 1.32 24.5  D7020M12D 27.33 3,000 2.97 150 1.8 28.1  D7020H12D 32.11 3,500 4.05 220 2.64 32.8  D7020U12D 35.60 3,900 5.04 290 3.48 36.5  D7020L12B Ball+ Sleeve 22.47 2,500 2.01 110 1.32 24.5  D7020M12B 27.33 3,000 2.97 150 1.8 28.1  D7020H12B 32.11 3,500 4.05 220 2.64 32.8  D7020U12B 35.60 3,900 5.04 290 3.48 36.5 D5015H05S Sleeve 22.47 2,500 2.01 110 1.32 24.5  D7020M12S 27.33 3,000 2.97 150 1.8 28.1  D7020H12S 32.11 3,500 4.05 220 2.64 32.8  D7020U12S 35.60 3,900 5.04 290 3.48 36.5  D7020L24D 24 2 Ball 22.47 2,500 2.01 60 1.44 24.5  D7020M24D 27.33 3,000 2.97 90 2.16 28.1  D7020H24D 32.11 3,500 4.05 130 3.12 32.8  D7020U24D 35.60 3,900 5.04 160 3.84 36.5  D7020L24B Ball+ Sleeve 22.47 2,500 2.01 60 1.44 24.5  D7020M24B 27.33 3,000 2.97 90 2.16 28.1  D7020H24B 32.11 3,500 4.05 130 3.12 32.8  D7020U24B 35.60 3,900 5.04 160 3.84 36.5  D7020L24S Sleeve 22.47 2,500 2.01 60 1.44 24.5  D7020M24S 27.33 3,000 2.97 90 2.16 28.1  D7020H24S 32.11 3,500 4.05 130 3.12 32.8  D7020U24S 35.60 3,900 5.04 160 3.84 36.5