You can connect up to three assembled Rover modules to Mars at the same time.

<aside> <img src="/icons/warning_red.svg" alt="/icons/warning_red.svg" width="40px" /> WARNING: Only two assembled Rover modules can be connected to Mars during camera calibration — one for your camera, and one for the calibration board.

</aside>

1. Connect one end of a 15-m LAN cable to the Ethernet port on Rover.
2. Connect the other end of the 15-m LAN cable to an Ethernet port on Mars.

<aside> <img src="/icons/warning_red.svg" alt="/icons/warning_red.svg" width="40px" /> WARNING: Do not connect any third-party devices to Mars using these Ethernet ports. Doing so will void the warranty and may cause damage to Mars and any connected third-party devices.

</aside>

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