Youopto 100G Series is a 100Gbps receiver optical subassembly(ROSA) integrating a high speed 4 PIN chips,4 channel TIA，TFF LWDM Demux，SOA，TEC，thermistor  in a BOX package. It is designed for use in small  from-factor pluggable transceivers and other types of optical modules for   high-speed telecommunication and data applications。