Aluminum alloy material frosted gray metal paint high hardness, frosted metal gloss, not easy to rust, aluminum alloy material is more conducive to heat dissipationHollow design heat dissipation strong top reserved for heat dissipation openings, the case with a fan to dissipate heat quickly, can effectively the motherboardExterior parameters.Name: Sunrise X3 faction aluminum alloy shellSize: 90 X 60 X 33mmFan parametersFan size: 40x40x10mmWire length:8cmRated speed: 4800rpm+10%Rated voltage: DC 5V life: 25C, 20000 hours voltage: 4VPolarity protection: circuit will not be burned when VCC/GND is reversed Colour:Material:Aluminum alloyPackage Contents:1 x Aluminum Alloy Case1 x Cooling FanOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.