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
Cisco C9300-NM-4G - Cisco Catalyst 9300 Series Network Module - Expansion module - Gigabit SFP x 4
Planet MFB-TFX SFP-Port 100Base-FX Transceiver (1310 nm) - 2 km (-40 ~ 75 Degree C) - Newegg.com