Shenzhen FH-net Optoelectronics Co.,Ltd, our firm, which is located Shenzhen , China , has been dealing in the line of researching, developing, manufacturing and marketing fiber optical products for six years, and therefore have wide experience in all the lines we handle. We have passed ISO9001: 2000 international quality system certification, and the products have obtained CE, FCC and ROHS certification. We promise that free technical surpport, all products are maintained in lifetime. Our main products include fiber media converter, transceiver, ethernet switch, video converter, fiber optic modem, protocol converter, PDH Multiplexer, adaptor, patch cord, optical coupler, attenuator, cctv and so on, We have done my utmost to ensure that these items as good as possible.