Deliver long-reach Gigabit Ethernet over single-mode fiber with a transceiver designed for Citrix-compatible environments and enterprise procurement standards. The EW3P0000559-AO supports 1000Base-LX operation at 1 Gbps, using a 1310 nm wavelength and LC connector to reach up to 10 km over SMF. This module is built for teams that need predictable optical performance without paying for OEM-only sourcing. It is MSA compliant, hot-swappable, and TAA compliant, making it a practical fit for regulated environments, standardized spares, and mixed-vendor infrastructure. The programmed and serialized design helps ensure clean initialization in supported platforms, while the single-mode fiber profile suits campus interconnects, building-to-building runs, and aggregation links where copper is no longer enough. AddOn’s lifetime limited warranty adds confidence for deployment and inventory planning. When the requirement is a verified 1 GbE optical path with the right reach, connector, and procurement profile, this transceiver is built to hold the line.