Red Copper Cable
Red Copper Cables are blocks that can be used to transmit power any given distance between your machines. There's also a Coated Red Copper Cable block that functions in the same manner but is a full block, useful for when you wish to transmit power through a wall without leaving a visible gap. Another variant, the Paintable Red Copper Cable is available to even further visually integrate the cables into walls. It can be painted by using any solid block on it, which will change its texture to match the held block.
Crafting
The regular red copper cable is crafted like so:
The coated copper cable:
And finally, the paintable copper cable:
Usage
Place it next to a compatible machine's port. It'll automatically connect to it and begin transferring power between all available power transmitters (such as a power generating machine), and power consumers.