Compatible for HP J9142B J9143B WDM SFP moudle; 1000BASE-BX-U and 1000BASE-BX-D Bidirectional SFP Optic, up to 20km over single LC.; SFP Bidi Transceiver, 1.25G b/s SFP Bidi, Single LC connector, Wavelength:
Up: TX1310nm/RX1550nm;
Down: TX1550nm/RX1310nm.; Compatible with Cisco. Jeirdus owns Compatibility LAB to meet the coding requirements for various brands of switches and routers. Each transceiver is individually tested before delivery.; 100% new materials, high Quality with CE, FCC, 3 year replacement and lifetime warranty