It allows the equipment (i.e. televisions) to be protected by the same surge and power device that is protecting the AV equipment. No need for expensive in-wall surge protection equipment. And the dual outlet gives flexibility to power additional equipment such as baluns, DVD players, etc..We've timed the installation and in about 20 minutes you can provide power from your AV equipment to the television and not have an unsightly power cable running down a wall to the nearest power outlet. Simply install the power inlet box near your AV equipment and the dual outlet box behind your television and run ROMEX® to connect the two boxes and you're done.Just plug the included power cord into your surge protector and connect to the PowerLink2 inlet. By running all audio and video equipment through a common surge protector, you'll avoid complications caused by ground loops. For clean, low-profile installations such as wall mounting televisions. Many installers use Cat5/6 in the walls to run component, composite, and HDMI signals from the equipment to the television. We purposely included dual outlets to take advantage of installers needs for today's and tomorrow's future applications.