exact items shown, three AT-MC101XL fast ethernet converters, one power supplie and a length of media. I tried to see if I could get a pair of these to work in my home system, and I didn't manage to get connectivity but I know that each showed copper ethernet activity and when paired up showed the LINK indicator but I couldn't see any light from the TX port (but I don't know if these are IR or visible light units) I think there is a reasonable chance that these are working but I I can't be sure so I've marked lot "parts or not working" and selling them AS IS.
from the manual (located )The AT-MC10x Series Fast Ethernet Media Converters are designed to extend the distance of your network by interconnecting LAN devices that are physically separated by large distances. The AT-MC101XL, AT-MC102XL, AT-MC103XL, and AT-MC103LH media converters feature a 100Base-TX twisted pair port and an 100Base-FX fiber optic port. The twisted pair port has an RJ-45 connector and a maximum operating distance of 100 meters (328 feet). The fiber optic port has a dual ST or dual SC connector and a maximum operating distance of 2 kilometers (1.2 miles) to 40 kilometers (24.8 miles), depending on the model.

Note to me: 3rd drawer white cabinet to right of black cabinet

I normally ship within 24hours of your order, but the post office does not alwaysinitiate tracking when Iput the packages in the drop off box.