Huawei S-SFP-FE-LH40-SM1310 Huawei S-SFP-FE-LH40-SM1310 is Optical Transceiver. Its a Single-mode Module. Specification Transceiver type eSFP Transmission speed 100 Mbit/s Center wavelength (nm) 1310 Standard compliance 100base-LX Connector type LC Applicable cable and maximum transmission distance Single-mode fiber: 40 km Transmit power (dBm) -5.0 to 0 Maximum receiver sensitivity (dBm) -37.0 Overload power (dBm) -10.0 Extinction ratio (dB) 10.5 Operating temperature 0C to 70C (32F to 158F) Net Dimension(D x W x H mm) 110 x 70 x 37