Hewlett Packard Enterprise X122 1G SFP LC BX-U Transceiver 1000Mbit/s SFP 1310nm Single-mode network transceiver module

X122 1G SFP LC BX-U Transceiver SFP Gigabit-BX A small form-factor pluggable (SFP) Gigabit-BX (bi-directional) "upstream" transceiver that provides a full-duplex Gigabit solution up to 10 km on one strand of single-mode fiber. The J9143B connects to the J9142B "downstream" transceiver, or to any IEEE-standard 1000BASE-BX10-D ("downstream") device.