C-LIGHT 25G/10G Auto Adapting 40km SFP refers to a dual-rate optical transceiver module that supports both 10G and 25G data rates over 40km distances using single-mode fiber
The 400G QSFP-DD LR4 Optical Transceiver delivers 400Gbps (4×100G) data rates over single-mode fiber with a 10km reach, utilizing CWDM4 technology and QSFP-DD form factor.