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

Dip switches can be confusing. But working fine

Product was as advertised and arrived timely.

This is best bang-for-the-buck audiophile investment I ever made. Signals traveling from distant data centers/ ISPs contain timing disruptions that add to the electrical noise from a modem to cause a surprising level of audio / video degradation that can be mitigated by filters. But why mitigate when you can eliminate? Converting Ethernet signals to optical and back eliminates both problems for less than $80.00 if you choose to upgrade Ethernet cables as well. (I linked an Arris 3.1 modem by an insulated 18 Cat 8 Ethernet cable to one optical converter, connected by a 6 optical cable to the other, and then by an insulated 6 Cat 8 cable to the Ethernet hub of an MacBook Air M2. Uninsulated Ethernet cables act like aerials and cause the sound to be excessively bright.) Whats the benefit of freeing Ethernet signals from jitter/ noise? Firstly, Internet webpages will snap open in half the time with full color saturation, movies depending on original quality will be noticeably enhanced with crisper image and more accessible/ open sound. Listening on headsets, I often find myself checking that the sound is not playing through the Macs speakers and waking my apartment neighbors because the sound-stage has so expanded. That sound-stage expansion, lack of background noise, and emergence of the smallest musical detail are particularly marked when listening to classical music via USB cable as jitter degradation from an Ethernet connection largely collapses it. Looking to fix that problem is how I happened on this solution of optical conversion which I highly recommend. Below are the description and links to avoid any confusion from an unanchored product review: This package of Open SFP Slot A Pair of 1.25G/s Gigabit Fiber Ethernet Media Converter 10/100/1000Base-Tx to 1000Base-SX SMF RJ45 to SFP Slot, Support SFP Gigabit modules up to 120KM( 2 Pack) is plug and play once the LC to LC Fiber Patch Cable OM3 for dual mode is added (all thats needed for short runs.) https://www.amazon.com/dp/B08Z7BZG5K https://www.amazon.com/dp/B08BYKGGS2

Works, it is the solution I needed

This was the perfect solution for running access to another part of the house in order to use the gigabit internet without buying bulk Cat 6 cable. This works very well to provide gigabit speed from the router/switch to another part of the house when you buy two units and use multimode duplex fiber optic cable to connect them. https://www.amazon.com/gp/product/B0055177G4/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

Ive purchased two sets of these and have had problems with both sets locking up. Ive replaced the network cable and the switch, but still the module locks up jabbering. It takes a while for it to happen. It wont do it right away. Usually after about a good 24-48 hour period it will lock up and just slam the fiber with packets. This is the second set to do this. Not sure what is going on. Update: Company did contact me, tried to resolve the problem. They think its a bad cable. Raising my rating on these unless I find out otherwise.

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.

I am using 4 of these on old OM1 multimode fiber to connect a server in one building to a network in another building, and they work well. Much cheaper than using a couple of network switches. The only downside is the lack of mounting tabs or holes on the box, so I have to improvise a mount each time.

This does exactly as expected. I have had them running for almost a year now and had no issues.

These units burn down easily. I bought 8 pieces lasted for a month got over heated and died. Replaced it with TPLINK expensive but worth every penny.