2KA4934 - TP-LINK MC210CS Gigabit Media Converter, 1000Mbps RJ45 to 1000M Single-Mode SC Fiber, up to 15Km/9miles, Chassis mountable : Electronics - Amazon.com
TP-Link TL-FC111B-20, Media converter 10/100 Mbps RJ-45/SC, SM 1310nm, 20
Tp Link Mc111CS-20 and Mc112CS-20 Compatible 2km 20km Fast Ethernet Fiber to RJ45 Media Converter - China Fiber to RJ45 Media Converter and Tp Link Media Converter