1、STABILITY AND DURABILITY: This metal housing can effectively protect the for Orange pi 3B motherboard for increased stability and durability, very practical 2、EFFICIENT AND POWERFUL: Single board computer metal case equipped with powerful cooling fan, effective cooling, improve performance, extend product life 3、UNIQUE AND ESSENTIAL: Black design single board computer case is fashion and unique, has a good heat dissipation performance at the same time, which is an essential accessory 4、BEAUTIFUL AND PRACTICAL: This metal case is perfect compatible with for 3B motherboard, easy assembly for beginners and amateur, also easy to access all ports. Awesome looking can make your microcomputer look cooler than others 5、FUNCTIONS AND USES: Single board computer metal case won't block the signal, provide a stable platform for 3B motherboard so that allow air to circulate on the bottom side of the board and avoid the screws scratching the desk surface