VGA to RJ45 -adapters. I had a need for a longer video cable so I could put my video projector where I wanted but didn't feel like buying an expensive long VGA-cable. I knew that it is possible to run VGA-signal across a CAT-5 cable and found ready masks for a PCB for the adapters.
I butchered the VGA- and RJ45-connectors from a couple of old ISA network cards and PCI video cards so it was quite cheap project to make. The adapters work very well and at the moment I'm using it with a 5 meter network cable and I don't see any interferences in the picture.
The PCB masks can be found here: