Redback® SFP-GE-ZX Compatible 1000Base-ZX SFP Transceiver (SMF. 1550nm. 80km. LC). A Redback® SFP transceiver that operates at 1550nm over single-mode fiber. with a maximum reach of 80km connected via a LC connector. This Redback® compatible SFP transceiver has been programmed. uniquely serialized. and data-traffic and application tested to ensure it is 100% compliant and functional. Our SFP transceiver will initialize and perform identically to Redback's transceiver and is built to meet or exceed Redback's specifications. and comply with MSA (Multi-Source Agreement) standards. The actual part shipped may have a different part number. but will be functionally identical and 100% compatible. Trade Agreements Act (TAA) versions of this part are available.