I do not find the Retrotink 4k any less configurable than the OSSC (non-pro, I haven't tried the pro). Note that the 4k is nothing like the 5X-Pro which is more

I do not find the Retrotink 4k any less configurable than the OSSC (non-pro, I haven't tried the pro). Note that the 4k is nothing like the 5X-Pro which is more plug and play.