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I'm writing you from The Danish Filmschool, where I am currently in charge of our 18 camera OptiTrack system. Right now we're running a larger motion capture project, and using the system constantly.
That's why its a big problem for us when one of our OptiHubs went down yesterday.
Seeing as its going to take some time for a new OptiHub to arrive from America, we are looking into alternatives.

Yesterday I spoke with your technical support, and was advised to try to use sync cables between the cameras instead of the hubs. That way, I would be able to get it running with a regular USB hub (without high-power mode).
After looking into it, it seems we didn't get any of the Sync Cable Splitters with the system when we purchased it.

Is there any way I can replicate those cables? They seem to be component in one end and a mini jack in the other.
I'd like the correct name for the cables, so I can try to purchase them from a local retailer.

Am I correct in thinking that I would need 18 of those cables, plus an extender between each camera from 1-18?

And on another note.
It would be greatly beneficial for us here in Europe, if you could have a supplier of some sort over here. The mail time between the continents is just to long for it to be helpful in a bind.
I'd be willing to pay double price, if I could have a new OptiHub tomorrow.

-Jon Vinther

After some testing, I got it working with a mini-jack -> RCA.

I am going out to purchase 18 of those cables now, and some in betweens.

Now my question is:
Is it possible to sync 6 cameras with a regular USB hub, and the other 12 with the OptiHubs?
When I tried it earlier, it seemed that the OptiHub's sync overwrote the RCA sync cables. But would it be possible to combine the two?

For splitters, you will need to make sure you get 1/4 stereo male to 2x rca (one per channel, left and right).

The system is not designed to have 12 cameras on OptiSync, then output to 6 additional cameras. In testing, we have found that it works this way to a limited extent, however you may experience issues when trying this in a larger setup. Our recommendation would be to chain all 12 cameras.