Check out the video I linked to in this post.
That’s a nice rangefinder but it pulls too much current to power directly from the I2C connection. The I2C connection can power things like a magnetometer and other low power sensors.
I’m new to using the Cube myself but one purchase which I hope will make it easier to connect various sensors to the cube is this wire set.
I’m hoping these pre-crimped wires will make it easier to make adapter cables to sensors without the standard Pixhawk connector.