As service providers upgrade aging 10G DWDM infrastructure, AddOn QSFP28 100G DCO transceiver family now includes our latest Gen2 variants – ITEMP, ITEMP AutoTune and CTEMP AutoTune – delivering enhanced performance, expanded temperature tolerance, and simplified deployment.
Building on the success of our original 100G DCO solution, the first OEM alternative coherent optic with SFF-8636 support for legacy QSFP28 switch ports, these new Gen2 variants maintain up to 80km reach while adding advanced tuning capabilities for faster, more flexible network integration.
Now available, the QSFP28 100G DCO High Tx CTEMP and ITEMP expand the portfolio even further, giving service providers and enterprises a cost-effective alternative to 400G only solutions with CMIS support.
Whether you choose our CTEMP, ITEMP, Gen2 AutoTune, or the new High Tx Power options, AddOn provides immediate, multi-vendor interoperability at a lower cost than proprietary OEM solutions.
QSFP28 100G DCO Product Variants

Features & Benefits:
- Up to 80km transmission for DWDM networks without additional amplification.
- Multiple variants available (CTEMP/ITEMP, Gen2 AutoTune, and High Tx Power) for flexible deployment.
- Compatible with multiple OEM platforms for seamless integration.
- In-stock availability and fast shipping from U.S. and U.K. locations.
- Lifetime warranty for lasting reliability and performance assurance.
