1.25G SM SFP 1490nm TX FP 10km with DDM, Simplex LC Connector, 1310nm RX – SilverNet
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
Original For Huawei 1.25G-1310nm-10km-SM-ESFP Optical Transceiver Module | eBay