Features; 1. The case shell is specially tailored for the X3. 2. Using aluminum alloy material, high hardness, frosted metallic luster, not easy to rust, aluminum alloy material is more conducive to heat dissipation 3. Hollow-out design, heat dissipation holes are reserved at the top, and the shell is equipped with a fan to dissipate heat quickly, which can effectively the motherboard 4. Antenna can be installed 5. It can be installed on the robot car Specification: Product name: for Rising X3 case + fan, with antenna Shell size: 90 x 60 x 33mm Fan parameters: Fan size: 40 x 40 x 10mm Line length: 8cm Rated speed: 4800RPM10% Rated voltage: DC 5V Life: 25C, 20,000 hours voltage: 4V Polarity protection: when VCC/GND is reversed, the circuit will not be burned Rated current: 0.150.02 Operating temperature/humidity range: -10C~+60C/35%-85%RH Material: ABS+ metal colour: black Package Contents: 1 x for Rising X3 Metal Case 1 x cooling fan 1 x WiFi Antenna 1 x screw pack Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.