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

Excellent

I am using this device to connect my barn to my house. The barn is about 300ft from the house and I was nervous about the Ethernet limit of 330ft. This fiber to CAT converter is a low cost option that works really well, very easy to setup and use.

Generally a media converter (cheaper ones) will only allow 10/100 data transfer, these will do full GB data transfer with the installed GBIC (SFP Module) over fiber. You dont need one on both ends, only a GBIC on each end.

Dip switches can be confusing. But working fine

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%.

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.

it is what it says it is

As it looks like the reviews Amazon associates with this device are with similar devices, thought I should chime in on how this particular device works. I plugged in a Cisco rated 10GTek multimode, 550m range SFP transceiver into this, plugged the other identical SFP transceiver into my genuine Cisco SG300 series switch and strung up a 30m pre-made multi-mode fiber rated for outdoor use. The goal of this setup over copper is electrical isolation in case of lightning. It just works. At this it is by far the cheapest solution I have hit so far that just works. I tested performance between my laptop and main computer with iperf and performance was identical between directly plugging in laptop to my Cisco SG300 and through this media converter, near 1Gb/s speeds. With it being so quick, cheap, and easy to do fiber this way, one has to wonder why the fastest ISP I can get in the middle of a major, dense city only provides much crappier, unreliable, fails as soon as the power goes out, and slower service with much more expensive hardware so they can do it over coax and my only other option is antique, slow phone lines. Plus when I moved in they had to string up new lines and of course they chose copper, not fiber, which makes no sense to me. With a cheap single mode SFP transceiver and a cheap media converter they could provide me much faster service with lines running back to their central office where they could have UPSes and backup generators to make the service reliable and sell the service for more money because it would be worth it. At this the stuff wouldnt be going out / getting fried every time there was a lightning storm, which has become increasingly common and intense in recent years where I live. Also FiOS makes no sense to me either when I was in a FiOS neighborhood because they installed this gigantic box (ONT) in my closet that must of cost them a fortune while this cheap little box I am using does the same job except much faster at maybe 1/40th the price. So its like I could provide awesome service that serves the customers every need and do it well with a $25 box or I could do it badly with a $1,000 box. Of course telco logic is do it badly with the super expensive box that falls way short of the mark every time.

I use these from time to time with inexpensive switches for POE cameras with fiber interconnecting buildings… Saves you from the problems with lightning…

Highly Recommend