10Gtek 10GBase-LR SFP+ Transceiver, 10G 1310nm SMF, up to 10 km, Compatible with Cisco SFP-10G-LR, Meraki MA-SFP-10GB-LR, Ubiquiti UniFi UF-SM-10G, Mikrotik, Fortinet, Netgear and More - Newegg.com
Cisco SFP-10G-LR-FL Module | Single Fiber Cisco SFP Connector
Cisco SFP-10G-LR Compatible 10GBASE-LR SFP+ 1310nm | Fibertronics, Inc.