1000BASE-LX/LH SFP Transceiver Module (SMF, 1310nm, 10km, LC, DOM) Compatible with Cisco MGBLX11000BASE LX/LH SFP transceiver module is equipped with an LC duplex connector, which is high-performance, cost-effective, supporting dual data rates of 1.25G bps and 1.0625G bps at the link distance up to 10km over single-mode fiber (SMF). QSFPTEK 1000BASE LX transceiver is compatible with the IEEE 802.3 z 1000BASE-LX standard. This Compatible 1000BASE-LX/LH SFP fiber optic transceiver module consists of three sections: an FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA), and an MCU control unit.