I recently bought a used Meinberg M300 that included an optical link system (GOAL).
It seems brand new, but I don’t have a need for it. I don’t have a fiber optic cable with the right connectors, so I can’t test it, but I expect that it works fine.
Before I try to sell it on eBay, I’d like to ask here if anyone has an interest in it. It is available for free for pool server operators. It can be picked up in the centre of the Netherlands or I can send it to you (if you pay me the shipping costs).
Please send me a DM and I wil update this topic when it is no longer available.