PCEngines Indoor Blue Enclosure for APU & ALIX2D13 is designed for ALIX2D13, APU1D, APU1D4 boards
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Assembly notes
Tools needed: Phillips screw driver, 5 mm or 3/16" nut driver. Remove hex nuts from DB9 connector of ALIX board. Mount ALIX board in enclosure, then fasten all screws and hex nuts. CF card can be secured with Kapton tape to the CF socket, or a strip of elastic rubber (e.g. sealing strip for windows) on the inside of the top cover.