Advice Needed for A New Amazon Affiliate Site

Hi People! I'm launching my second amazon affiliate site soon.

I've some super easy keywords with high buyer intent, all of them under " Electronics " Niche. " Just an example.

But they are not related 100%, like some keywords let's say on " Monitors, Mice, Speakers " etc..

I'm not willing to target tough keywords, It's just a pack of keywords that I'm sure I will be doing at least 400 to 500$ per month with these keywords as I already tested some of them in another site of mine.

I understand the point that it will be easier for me to make 1 site and collect all these keywords in one site so my efforts in SEO will be focused on one site.

But, My question is, Is it a right step to make one niche site under the " Electronics " niche and targeting those keywords or creating a site for monitors, another for speakers, etc..

It's a super Newbie question, I know.

Thanks in advance!

You can go for an authority site, however, it'll be harder as it you'll need a lot more content to cover all the different niches and fill up silos.

both models have pros and cons. if you have the budget, the knowledge and time i think an electronics niche is better. the website will hold more value and the day you decide to flip it you will make way more than a micro niche one. BUT, if you don't have those 3 metrics maybe a narrow one could be better.
You will not really know untill you try it. its a game enjoy it.