The Finisar FTLC3351S3PL1 is a QSFP28-DCO ZR transceiver designed for 100 Gigabit Ethernet and OTU4 applications. It supports Coherent DCO (Digital Coherent Optics) technology, offering advanced modulation and signal processing for long-haul optical networking. This transceiver is built for high-performance data center interconnects and telecommunications infrastructure.