Springtek is a comprehensive enterprise of optical modules and devices manufacturing which integrating research and development, production, sales and service. The main products we produce are SFP/SFP+/XFP/SFP28/QSFP/CFP/QSFP28/QSFP56/OSFP optical module,Media Converters,WDM Mux Demux Optical fiber communication products ;such as multiplexers. The products are mainly used in the fields of Ethernet, FTTH, SDH /SONET, network storage, wireless network and wavelength division system, etc. ......