The W125970370 is a high-quality industrial-grade SFP+ SMF LR optical transceiver designed for high-speed Ethernet networks. It operates at 1310nm and supports data transmission up to 10 Gbps over single-mode fiber (SMF) for distances up to 10 km. The model uses a duplex LC/UPC connection, complies with 10GBase-LR and SFP+ MSA standards, and includes DDM/DOM monitoring for essential operating parameters. It is built to operate over a wide temperature range from -40°C to 85°C, making it suitable for demanding industrial and professional networking environments.