The AndXe CWDM-SFP-1270-40 is a commercial-grade SFP optical transceiver supporting a 1.25Gbps data rate and transmission distances of up to 40km over single-mode fiber. It is available in 18 standard CWDM wavelength options from 1270nm to 1610nm, with each module operating on a fixed wavelength. This design enables a significant increase in fiber capacity through WDM technology. Featuring an LC duplex interface, it is compatible with industry-standard SFP slots, supports hot-plug installation, and operates reliably across the commercial temperature range in compliance with RoHS standards. It is an ideal solution for enterprise networks, data center interconnects, and other applications requiring efficient utilization of fiber resources.