1.25Gbps SFP Optical Transceiver (1000BASE-EX) Features: Distance Reach: Up to 40km over Single-Mode Fiber (SMF) Connector Type: Duplex LC Power Supply: Single +3.3V Monitoring: Digital Diagnostic Monitoring (DDM / DDMI) supported Operating Temperature: 0°C to 70°C (Commercial grade) Compliance: SFP MSA, SFF-8472, and RoHS compliant