The EFA-200C from Alnair Labs Corporation is a Optical Amplifier with Input Power -10 to 10 dBm (Input Power Monitoring Range), Noise Figure 5 to 5.5 dB, Gain 13 to 20 dB, Input Power -10 to 10 dBm (Input Power Monitoring Range), Output Power >13 to 20 dBm. More details for EFA-200C can be seen below.