SAH series boards are developed based on STN6200 platform. They are mainly used in front-end spectroscopic amplifier equipment for Internet traffic monitoring. The device can be connected to the transmission line splitting port, efficiently copy the transmission data on the line and send it to the monitoring equipment without affecting the data transmission on the line. SSAH has output port control function, which can control the output switches of each port, control the flow direction, and has high security. The card supports 100G throughput and it supports bidirectional 1*4 signal amplification.