The fact that there are QSFP and OSFP pluggable EDFAs somehow feels sorta wrong. I really don't want to know how noisy those things are, and yet, I can see how useful they might be for datacenter interconnect types. I hate to lose switchports to something better handled by a 1U combiner/amplifier shelf in that application.
Though the fact that this means that the CS connector has gained traction as a result is also not making me happy, because what we needed was something even SMALLER than LC, said no one ever. Like, seriously? At least it's push-pull instead of locking tab.
