Cleerline SSF-SFP-MM1G transceiver is a high-performance, cost-effective module supporting data-rates of 1.25Gbps and 550m transmission distance with multimode fiber. This SFP uses the 1000Base-SX standard, popular for short range connections. The transceiver consists of three sections: a VCSEL laser transmitter, a PIN photodiode integrated with a transimpedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements. The transceivers follow the industry standards of the SFP Multi-Source Agreement (MSA) and SFF-8472, making them directly interchangeable with any networking device following industry standards.