Being supported by an highly developed and skilled IT group, we could offer you technical support on pre-sales & after-sales support for Gge-50era 16 Ports High Power Ytterbium Catv Edfa, Digital Cable Tv Headend , Amp With Optical Input , Receptor Tv Box ,Active Node . We will continually strive to improve our service and provide the best quality products with competitive prices. Any inquiry or comment is highly appreciated. Please contact us freely. The product will supply to all over the world, such as Europe, America, Australia,Naples , Turin ,Las Vegas , Algeria .As operation principle is "be market-oriented , good faith as principle, win-win as objective", holding on "customer first, quality assurance, service first" as our purpose, dedicated to provide the original quality, create excellence service , we won the praise and trust in the industry of auto parts. In the future, We will provide quality product and excellent service in return to our customers , welcome any suggestions and feedback from all over the world.