Overview: Unique design for the CD case appearance, fashion design. Special pull-&-push & rotate structure design, suitable for different laptop models. Compatible appearance & structure, easy for carrying. Perfect combination of metal & rubber. Metal panel can be removed easily for customer convenience. Silent, strong wind, power saving & environmental friendly. Metal panel status Non-metal panel status Technical Parameter: Fan size:70*70*15 Net weight: Pressure:5VDC Currency:0.23±10%A Input power:1.15 WFan rotating speed:2200±10%RPM Max input air:25.3CFM *2 Bearing Type: Hudro Bearing Specification: Dimensions:5.31in *3.94in*1.38in Weight:6.63oz