OM3559CX100 is a QSFP28 transceiver module designed for 2 km optical communication applications with single mode fiber. It is compliant with 100GE CWDM4 MSA, QSFP28 MSA, IEEE 802.3bm Annex 83E and OIF CEI-28G-VSR standards. Digital diagnostic management interface (DDMI) is realized by I2C interface in compliance with SFF-8636. The module is RoHS 2 compliant.