A:AnswerYou can use a wall plug. They use the same patch cable, one end plugs in to your home outlet (2 prong) and the other end into your DVR, Then you take a second one and plug it into your modem/router and the other 2 prong into an outlet. Worked great in an apartment where you cannot drill holes etc.
A:AnswerThe unit comes with 3 AC adapters. One for the DVR and two for the cameras. Each of the camera adapters come with a 4 way splitter that connects to an AC adapter on one end and 4 cameras on the other. I'm not sure the specs.