I’m going through old cables and get the impression that this is for a specific product, but I can’t tell what product it’s for.
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Well, it is for sure an S-Video cable. There was a 7 pin variant too, but it doesn’t look like the one pictured. The other end has a 4 pin S video and composite video cables.
As you say, it is for some kind of specific product, perhaps a video capture card?
This looks pretty close? https://www.av-connection.com/?PGr=2575
Edit: looks like it might be a 9 pin s video to 4 pin s video + composite adapter.
It is definitely 7 pins, not 9. The pin layout matches this image on the wikipedia page for mini din: https://commons.wikimedia.org/wiki/File:S-Video_7-pin_quasi-DIN_connector.JPG#/media/File:S-Video_7-pin_quasi-DIN_connector.JPG
I tested the pin connections and it does match the “compatible with an S-video… plug” in the image’s caption, but I don’t know if the keying allows for that. The key on the 7-pin is both wider and thinner than on the 4-pin.
The fact that this is a long cable instead of a short adapter does give me the impression that both the 4-pin mini din and the rca connector are supposed to be used simultaneously.
Could also be to hook a digital camera up to your TV. I had an older camera that had something similar.
Its a Combined s-video and composite video adapter cable. I had a similar one for an old digital camera, but I think it used 3.5mm audio jack to plug into the camera?
Probably for a digital camera. I have a few of these in various forms, all for digital cameras/camcorders I’ve had. They’re used to display the camera’s output on a TV or monitor.
Just a hypothesis… could it be part of an ancient KVM system?
S-Video for video, and the other two are for your preferred keyboard and/or mouse interface.
