Pros: Great way to save time and money.
Even if you work for peanuts, this would be cheaper then paying your wages to make these up from scratch.
Just make sure to use a power supply big enough to supply the current to all 4 devices.

Cons: The unused ends can touch something and short out. I had to make sure everything was clear before plugging in the power supply.

Pros: Great for a 4-camera system, use the 1000ma power supply.

Cons: none

Pros: Very simple solution for supplying power to smaller systems.

Cons: None

Pros: Good Y-cable, quality of wire harness is good, wire gauge is heavier than competition so you can put more current through this one.

Cons: Sometimes I found the internal wires do not follow a consistent color pattern, but you should not need to cut open the harness as I did.

Other Thoughts: Price is right

Pros: great price and frees up outlets works great

Cons: None