ATOP 25G SFP28 DWDM series consist of 25G SFP28-DWDM Tunable, 25G SFP28-DWDM EDC, and 25G SFP28-DWDM C-Band 10KM, designed for use in 28Gb/s links up to 30KM of G.652 single mode fiber. Compatible with SFF-8431, SFF-8432 and supporting Wireless (CPRI/eCPRI), 25G Ethernet LR and 25G Fiber Channel protocol, these 25G DWDM SFP28 products have many telecom and datacom applications including 5G/4G wireless, Fast Ethernet, and Fiber Channel. Digital diagnostics functions are available via an I2C interface, as specified by SFF-8472 and SFF-8402.