Mini Unmanaged 1x 10/100/1000Base-T RJ45 to 1x 100/1000Base-X Single Mode ST 1310nm 10km Gigabit Ethernet Media Converter, American Plug Standard

Im am quite happy that this is coming together. I'm happy that I chose to deal with a big company that is well established. That is what it means by taking care of your customers. I'm most definitely be dealing with FS.com in the future.

Simple unit, does just what it says.
Tested in 2 configurations:
1) Copper to unit, to fibre, to unit to copper - this worked exactly as a copper extender.
2) Copper to unit to fibre to sfp port in a switch (juniper) - this worked as expected

in both cases this was straight out of the box, with no configuration or settings needed.

Note the power brick was US plug, but this is actually on a short cable so can easily be adapted to whichever plug is needed, including IEC for rack install.

Perfect. No nonsense media converter. Does what's exactly on the tin.. and does it for a great price.