Following up the changes from the second version, further changes and simplifications were made. Most important were to leave out the 3 original red/blue/green connectors and only use D-sub connectors. Also a redundant X-stepper D-sub connection, one on the left and one on the right side, were made. This makes it possible to connect the stepper motor for the X-axis either from the left side (when using a dedicated cable chain), or from the right side (using the standard wiring).

I3 MEGA HUB-II distribution circuit board
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Following files are available of this project:

• ANYCUBIC I3 MEGA HUB-III schematic diagram
• Circuit board outline (for modifying metal case
• Circuit board pinout description of all the connectors at the circuit board