SFP 1.25G Tx1550/Rx1490 80Km LC Transceiver

https://www.gearlinkoptic.com/products/sfp-1.25g-tx1550-rx1490-80km-lc-transceiver/

Gearlink's GCS7L0C54 SFP transceiver is compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The china optical transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1490nm DFB laser (the 1550nm DFB laser), and the PIN/TIA. The module data link up to 80km in 9/125um Single-mode fiber.