Guantai 8 Channels Video Fiber Optical Media Converters (1Pair Transmitter & Receiver) Singlemode Fiber Up to 20Km for CCTV Cameras Surveillance Security System

This is a transmitter/receiver pair to send up to 8 analog video signals down a single fiber.I am using it to send analog signals about 600 feet to avoid buying a few thousand feet of coaxial cable. I was already sending several HD signals down a 12 pair fiber to the same area, so this solution was perfect.These units use FC fiber connectors and my fiber has ST connectors, but I found adapters for about $9 each so it was fine.I have tested all 8 channels and they all works, but so far I have only used 4 channels at the same time and there was no problem at all.I would definitely buy this again if the need arose and I planning to try some of their other fiber products in the near future.I could not be happier with this purchase.