SFP DWDM Transceiver

https://www.optical-sintai.com/products/sfp-dwdm-transceiver.html

Designed for Ethernet, Fiber Channel, SDH, SONET, or CPRI links over duplex single-mode fibers, the Sintai DWDM SFP optical transceivers use DWDM C-band C15-C62 wavelengths with 100GHz spacing and support transmission distance up to 120km.