Amazon.com: A Pair of 1.25G SFP Bidi Transceiver, LC Single-Mode Single Fiber 1000Base-BIDI Module for Cisco GLC-BX-D, Ubiquiti UniFi UF-SM-1G-S, Mikrotik, Linksys and More, SMF 1490nm/1310nm, DDM, up to 20 km :
Amazon.com: 1.25G SFP Transceiver 1000Base-LX, 1310nm SMF, up to 10 km, for Cisco GLC-LH-SMD, Meraki MA-SFP-1GB-LX10, Ubiquiti UniFi, Fortinet, Mikrotik, D-Link, Supermicro, Netgear, TP-Link TL-SM311LS and More : Electronics
Amazon.com: 1000Base-LX 1.25G SFP Transceiver with 1310nm Dual LC Connector 20KM Single Mode DDM for Cisco Meraki Ubiquiti Mikrotik D-Link Supermicro Netgear
1.25G SFP LR 1310nm 10km SMF DOM LC Optical Transceiver
MikroTik Pair of SFP 1.25G 80km with Single LC-connectors [S-4554LC80D — Baltic Networks