Package of 2.  Comtrend's PG-9172PT G.hn Powerline Adapter with a Pass-Through Outlet is a G.hn-based powerline device designed to give users a better alternative to connect devices within a home or business network. Using existing electrical wiring and powerline technology, devices can now be connected at wired speeds without expensive rewiring and Ethernet (CAT5e/6) cables. With new G.hn technology, real world powerline performance is significantly improved over current powerline standards. G.hn minimizes the line of interference and maximizes video throughput.