interesting video where they perform a test on various poe surge protectors

https://youtu.be/IRXCoFU1MQM

Interesting video.
I conclude that a good ethernet surge protection costs over 100 € - in the price of RB.
Then what's the point of complicating, we buy a spare RB instead of a Surge protection.
The backup can also be useful when other problems arise.

best surge protector sofar = 2x 1gbps media converters connected with 1 meter of single mode fiber :D

best surge protector sofar = 2x 1gbps media converters connected with 1 meter of single mode fiber ...

... powered by? Don't forget that power adapters are "guilty" of quite many surge damages, overvoltage can pass those as well.

An independent review my ass.................