Without adding any new wires, Powerline  is  to using existing electrical power lines  to build a secure high speed  networks in our homes and offices .
It's very easy to set up and use, so, you can do the installation by yourself ,no need ISP or system company.   
Powerline  uses existing electrical wiring to move data as fast as 85 or 200 Megabits per second (Mbps)  ,just plug and play installation ,just plug the powerline adapter into the wall and connect the your Ethernet .

To connect to the Internet ,you need cable /DSL line or modem ,if you need to share connection among computers ,you need router. With the explosion of the Internet and broadband technology, power lines present a cost-effective, easy-to-adopt with your existing Ethernet home networking.

• HomePlug AV compliant, Co-existence with HomePlug 1.0, 1.0 Turbo nodes

• Link speed up to 200Mbps on existing AC power line with auto   adaptation

• Supports one 10/100Mbps Auto-MDI/MDIX Ethernet RJ-45 port

• 128-bit AES. Link Encryption with Key management for secure powerline  communications.

• Supports 3 LED indicators for Power, HomePlug and Ethernet

• Supports Windows based configuration utility

• Designed with universal power rating