1. Place your MCU on the tray and align the mounting holes.
Important
Larger trays (e.g. BIGTREETECH Octopus or Manta M8P) will only fit in the case if the board is oriented one way, as the trays are not symmetrical. If you have a large MCU board, check which direction fits in the case before securing the MCU to the tray.
2. Use the four (4) 6mm screws to secure the MCU.
3. Set the MCU tray on the pillars in the case. The board's power connectors should orient to the back of the case or to the side.
4. Fasten to the case with four (4) M3 x 6mm screws.