Precisely crafted hole positioneasy to installThe black aluminum alloy material can reduce the temperature of the orange pi board in to a certain extent, and the heat dissipation function is stronger.Aluminum alloy passive heat dissipation works more efficiently and better protects the motherboardThe black and simple design perfectly fits the interface of the corresponding motherboard.Applicable :FOR Orange Pi 2Note: Not Included Orange Pi 2 MotherboardColour:blackMaterial:Aluminum alloySize:62 x 55 x 15MMPackage Contents:2 x Aluminum Alloy Upper Cover2 x Aluminum Alloy Lower Cover2 x Screw Pack6 x Thermal PadOnly 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.