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This is a holder for a BeagleBone Black microcontroller that reduces the risk of the microcontroller coming into contact with water, dust or metal. It also makes it easier to handle the microcontroller.
The holder can be mounted on a ClamShelf laptop. It has bevelled edges that slide into the ClamShelf. The vents on the bevelled edges allow air circulation under the PCB both horizontally and vertically through the open top and bottom. Positioning guides help place the PCB and the screw holes in the corners make it possible to stack multiple holders using #4-40 screws, spacers and nuts.