Superior Powerline Gigabit Adapter with Extra Plug-upgrade Home NetworkThe ZyXEL PLA5215 600 Mbps Powerline Gigabit Pass-thru Ethernet Adapter improves networking performance by more than 20% comparing with the 500 Mbps powerline technologies for better multiple HD media streaming. Just plug a pair of PLA5215 into the electrical outlets and connect to your network devices, you can immediately enjoy HD multimedia streaming, multiplayer gaming and other network applications simultaneously in every room.