This is a faceplate that fits into the Hammond RM2015S enclosure when used with the PT10E-ASM prototyping board for Modtronix MicroX series development boards.

If you don't have the PT10E board and enclosure yet, you should purchase the PT10E-ENC kit, which includes the board, the enclosure and this faceplate.

You should purchase this faceplate only if you already had purchased the PT10E-ASM board separately but now are wanting to put it into an enclosure. Be sure to purchase the enclosure too, as well as a matching faceplate for the other side of the enclosure (which one you need depends on which MicroX board you have plugged into the PT24E board and which communication protocol you're using).