ZYXEL SFPBX1490D - Gigabit SFP Transceiver Module | Single-Mode | Single LC | 1490nm (TX) 1310nm (RX) WavelengthExperience robust, long range fiber connectivity with the ZYXEL SFPBX1490D. This high performance Gigabit SFP transceiver is purpose built for single mode fiber networks, delivering precise wavelength separation (1490 nm transmit and 1310 nm receive) in a compact, hot pluggable package. With a single LC duplex interface and the 1000Base BX standard, it is purposefully designed for enterprise data centers, campus networks, and backbone links that