Hi Team,
Is the any link can I check EOL & EOS for Peplink Balance devices?
It can often depend on the specific hardware revision you have, the 380 is still a current product sold but there have been a couple of generations of it.
If you are not sure you might want to open a support ticket or speak with the partner you bought the 380 from.
If you were looking at the 380 as a new purchase I would personally suggest also investigating the 380X as that will have a much longer life cycle at the moment and offer significantly higher performance over the older non X series product.