1000Base-ZX80/ZX120 SFP optical module is a high-performance, cost-effective module that supports a transmission rate of 1 Gbps and an SMF transmission distance of 80-120km. The laser transmitter is composed of three integrated DFA optical transceivers and one integrated DFA optical transceiver. All modules meet the first-class laser safety requirements. The optical module is compatible with SFP multi-source agreement (MSA) and SFF-8472.