We always believe that one's character decides products' quality, the details decides products' quality ,with the REALISTIC,EFFICIENT AND INNOVATIVE team spirit for Er Sm 1550nm 40km LC, Hd Over Fiber , Sfp Transceivers , Sfp28 25g Aoc Optical Cable ,Hdmi Fiber Cable . Honesty is our principle, skilled procedure is our perform, service is our target, and customers' satisfaction is our long term! The product will supply to all over the world, such as Europe, America, Australia,Houston, Japan,Czech, Guatemala.For many years, we now have adhered to the principle of customer oriented, quality based, excellence pursuing, mutual benefit sharing. We hope, with great sincerity and good will, to have the honor to help with your further market.