Cisco SFP-10G-BX20U-I Compatible 10G BX SFP+ BIDI TX1270nm/RX1330nm 20km LC SMF DDM Transceiver Module
Cisco SFP-10G-BX20U-I Compatible 10G BX SFP+ BIDI Supports 1270nm DFB transmitter and 1330nm PIN into LC connector, which provides 20km link distance over SMF.
