Wires

You'll find the following redstone wires available with the RedPower2 mod. They can be insulated, dyed, and bundled.

Wires
Wires can also be colored with wool, allowing all 16 minecraft colors. Different color wires do not connect to each other, but they can all connect to a bundled cable, which will output power to the corresponding colored wire on the other end.

You can even re-color the insulated wire!