Gigabit Multi-Mode LC Fiber to Ethernet Media Converter with A SFP SX Module, 1.25G Fiber to Copper RJ45 Media Converter, 1000Base-SX to 10/100/1000Base-TX, MMF, Transmission up to 550 meters/1804 ft

Bought 2 kits, Worked out of the box without any issue once I made duplex cabling.

Still working for me

These make a tremendous difference in an audio system. Depending on the quality of your system, you will be more than a little impressed. It is probably a bigger bang the better your audio system is and I cant compare to my older more midfi type audio systems but thats my gut. People are deploying very sophisticated and quite expensive alternatives but all I can say is this more than meets the threshold to matter so if you have any interest or doubt; give it a try.

Works perfectly

Works as expected. Great price for Media Converters.

This is a nice compact and well built unit. That met my object of providing a short optical run from my Cisco 8-port router to my home theater PC. (HTPC) I separately order a compatible Cisco transceiver and 1 meter optical cable. From the Media Converter I ran a short high quality ethernet cable to the JCAT NET XE card in the HTPC. Not a profound increase in sound quality but a noticeable improvement. Quick and easy installation. Id recommend this for audiophile use.

Used this to put my IPMI interface for the serve onto a fiber network. The server is on fiber for isolation/lightning protection. The IPMI wasnt accessible from the 10G cards, so the 1G needed to be converted to fiber to remote access the server. Works great for that.

Easy to install, plug and play

Hooking an old Cisco 2960 into my network and running into problems with optical converters just not syncing up. This one worked immediately.

I was looking for something to be an air gap between my radio tower where I get my Internet from and my home servers. I simple connected a fiber line between the two and plugged in the ethernet and plugged it in, and it just worked. I have not needed to even think about it once since I installed them which I think is the whole point of this type of device. You should not even know it is there if it is doing its job and this fills that roll 100%.